Home / 39,987.57-55,181.08-22,082.19

Finding the Fourth Proportional to 39,987.57, 55,181.08 and 22,082.19

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Solution

The fourth proportional to 39,987.57, 55,181.08 and 22,082.19 is: 30,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,987.57 : 55,181.08 = 22,082.19 : x
  2. Step 2: Convert to fraction form
    39,987.57/55,181.08 = 22,082.19/x
  3. Step 3: Cross multiply
    39,987.57x = 55,181.08 × 22,082.19
  4. Step 4: Simplify right side
    39,987.57x = 1,218,519,092.97
  5. Step 5: Solve for x
    x = 1,218,519,092.97/39,987.57
  6. Step 6: Final answer
    x = 30,472.45

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Double scale
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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.