Home / 21,301.88-29,385.41-16,257.31

Finding the Fourth Proportional to 21,301.88, 29,385.41 and 16,257.31

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Solution

The fourth proportional to 21,301.88, 29,385.41 and 16,257.31 is: 22,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.88 : 29,385.41 = 16,257.31 : x
  2. Step 2: Convert to fraction form
    21,301.88/29,385.41 = 16,257.31/x
  3. Step 3: Cross multiply
    21,301.88x = 29,385.41 × 16,257.31
  4. Step 4: Simplify right side
    21,301.88x = 477,727,565.10
  5. Step 5: Solve for x
    x = 477,727,565.10/21,301.88
  6. Step 6: Final answer
    x = 22,426.55

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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.