Home / 21,565.40-29,773.92-14,770.82

Finding the Fourth Proportional to 21,565.40, 29,773.92 and 14,770.82

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Solution

The fourth proportional to 21,565.40, 29,773.92 and 14,770.82 is: 20,393.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,565.40 : 29,773.92 = 14,770.82 : x
  2. Step 2: Convert to fraction form
    21,565.40/29,773.92 = 14,770.82/x
  3. Step 3: Cross multiply
    21,565.40x = 29,773.92 × 14,770.82
  4. Step 4: Simplify right side
    21,565.40x = 439,785,213.01
  5. Step 5: Solve for x
    x = 439,785,213.01/21,565.40
  6. Step 6: Final answer
    x = 20,393.09

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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.