Home / 39,431.09-54,414.18-22,434.96

Finding the Fourth Proportional to 39,431.09, 54,414.18 and 22,434.96

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Solution

The fourth proportional to 39,431.09, 54,414.18 and 22,434.96 is: 30,959.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,431.09 : 54,414.18 = 22,434.96 : x
  2. Step 2: Convert to fraction form
    39,431.09/54,414.18 = 22,434.96/x
  3. Step 3: Cross multiply
    39,431.09x = 54,414.18 × 22,434.96
  4. Step 4: Simplify right side
    39,431.09x = 1,220,779,849.71
  5. Step 5: Solve for x
    x = 1,220,779,849.71/39,431.09
  6. Step 6: Final answer
    x = 30,959.83

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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.