Home / 39,469.11-54,468.16-21,565.23

Finding the Fourth Proportional to 39,469.11, 54,468.16 and 21,565.23

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Solution

The fourth proportional to 39,469.11, 54,468.16 and 21,565.23 is: 29,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,469.11 : 54,468.16 = 21,565.23 : x
  2. Step 2: Convert to fraction form
    39,469.11/54,468.16 = 21,565.23/x
  3. Step 3: Cross multiply
    39,469.11x = 54,468.16 × 21,565.23
  4. Step 4: Simplify right side
    39,469.11x = 1,174,618,017.91
  5. Step 5: Solve for x
    x = 1,174,618,017.91/39,469.11
  6. Step 6: Final answer
    x = 29,760.44

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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.