Home / 39,538.92-54,565.34-21,635.49

Finding the Fourth Proportional to 39,538.92, 54,565.34 and 21,635.49

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Solution

The fourth proportional to 39,538.92, 54,565.34 and 21,635.49 is: 29,857.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.92 : 54,565.34 = 21,635.49 : x
  2. Step 2: Convert to fraction form
    39,538.92/54,565.34 = 21,635.49/x
  3. Step 3: Cross multiply
    39,538.92x = 54,565.34 × 21,635.49
  4. Step 4: Simplify right side
    39,538.92x = 1,180,547,867.92
  5. Step 5: Solve for x
    x = 1,180,547,867.92/39,538.92
  6. Step 6: Final answer
    x = 29,857.87

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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.