Home / 21,654.57-29,863.02-14,373.78

Finding the Fourth Proportional to 21,654.57, 29,863.02 and 14,373.78

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Solution

The fourth proportional to 21,654.57, 29,863.02 and 14,373.78 is: 19,822.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,654.57 : 29,863.02 = 14,373.78 : x
  2. Step 2: Convert to fraction form
    21,654.57/29,863.02 = 14,373.78/x
  3. Step 3: Cross multiply
    21,654.57x = 29,863.02 × 14,373.78
  4. Step 4: Simplify right side
    21,654.57x = 429,244,479.62
  5. Step 5: Solve for x
    x = 429,244,479.62/21,654.57
  6. Step 6: Final answer
    x = 19,822.35

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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.