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Finding the Fourth Proportional to 21,373.70, 29,487.08 and 14,207.08

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Solution

The fourth proportional to 21,373.70, 29,487.08 and 14,207.08 is: 19,600.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,373.70 : 29,487.08 = 14,207.08 : x
  2. Step 2: Convert to fraction form
    21,373.70/29,487.08 = 14,207.08/x
  3. Step 3: Cross multiply
    21,373.70x = 29,487.08 × 14,207.08
  4. Step 4: Simplify right side
    21,373.70x = 418,925,304.53
  5. Step 5: Solve for x
    x = 418,925,304.53/21,373.70
  6. Step 6: Final answer
    x = 19,600.04

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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.