Home / 22,051.82-30,431.72-11,980.34

Finding the Fourth Proportional to 22,051.82, 30,431.72 and 11,980.34

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Solution

The fourth proportional to 22,051.82, 30,431.72 and 11,980.34 is: 16,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.82 : 30,431.72 = 11,980.34 : x
  2. Step 2: Convert to fraction form
    22,051.82/30,431.72 = 11,980.34/x
  3. Step 3: Cross multiply
    22,051.82x = 30,431.72 × 11,980.34
  4. Step 4: Simplify right side
    22,051.82x = 364,582,306.26
  5. Step 5: Solve for x
    x = 364,582,306.26/22,051.82
  6. Step 6: Final answer
    x = 16,532.98

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Half scale
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Double scale
Find fourth proportional to 22,052.82, 30,433.10 and 11,981.34
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.