Home / 39,470.12-54,467.16-21,565.76

Finding the Fourth Proportional to 39,470.12, 54,467.16 and 21,565.76

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Solution

The fourth proportional to 39,470.12, 54,467.16 and 21,565.76 is: 29,759.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,470.12 : 54,467.16 = 21,565.76 : x
  2. Step 2: Convert to fraction form
    39,470.12/54,467.16 = 21,565.76/x
  3. Step 3: Cross multiply
    39,470.12x = 54,467.16 × 21,565.76
  4. Step 4: Simplify right side
    39,470.12x = 1,174,625,700.44
  5. Step 5: Solve for x
    x = 1,174,625,700.44/39,470.12
  6. Step 6: Final answer
    x = 29,759.87

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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.