Home / 22,052.40-30,431.60-11,980.48

Finding the Fourth Proportional to 22,052.40, 30,431.60 and 11,980.48

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Solution

The fourth proportional to 22,052.40, 30,431.60 and 11,980.48 is: 16,532.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,052.40 : 30,431.60 = 11,980.48 : x
  2. Step 2: Convert to fraction form
    22,052.40/30,431.60 = 11,980.48/x
  3. Step 3: Cross multiply
    22,052.40x = 30,431.60 × 11,980.48
  4. Step 4: Simplify right side
    22,052.40x = 364,585,175.17
  5. Step 5: Solve for x
    x = 364,585,175.17/22,052.40
  6. Step 6: Final answer
    x = 16,532.68

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Half scale
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Double scale
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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.