Home / 22,052.18-30,431.47-11,980.39

Finding the Fourth Proportional to 22,052.18, 30,431.47 and 11,980.39

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Solution

The fourth proportional to 22,052.18, 30,431.47 and 11,980.39 is: 16,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,052.18 : 30,431.47 = 11,980.39 : x
  2. Step 2: Convert to fraction form
    22,052.18/30,431.47 = 11,980.39/x
  3. Step 3: Cross multiply
    22,052.18x = 30,431.47 × 11,980.39
  4. Step 4: Simplify right side
    22,052.18x = 364,580,878.87
  5. Step 5: Solve for x
    x = 364,580,878.87/22,052.18
  6. Step 6: Final answer
    x = 16,532.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 22,053.18, 30,432.85 and 11,981.39
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.