Home / 39,480.13-54,482.45-21,575.24

Finding the Fourth Proportional to 39,480.13, 54,482.45 and 21,575.24

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Solution

The fourth proportional to 39,480.13, 54,482.45 and 21,575.24 is: 29,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,480.13 : 54,482.45 = 21,575.24 : x
  2. Step 2: Convert to fraction form
    39,480.13/54,482.45 = 21,575.24/x
  3. Step 3: Cross multiply
    39,480.13x = 54,482.45 × 21,575.24
  4. Step 4: Simplify right side
    39,480.13x = 1,175,471,934.54
  5. Step 5: Solve for x
    x = 1,175,471,934.54/39,480.13
  6. Step 6: Final answer
    x = 29,773.76

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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.