Home / 21,241.50-29,294.76-14,864.88

Finding the Fourth Proportional to 21,241.50, 29,294.76 and 14,864.88

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Solution

The fourth proportional to 21,241.50, 29,294.76 and 14,864.88 is: 20,500.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.50 : 29,294.76 = 14,864.88 : x
  2. Step 2: Convert to fraction form
    21,241.50/29,294.76 = 14,864.88/x
  3. Step 3: Cross multiply
    21,241.50x = 29,294.76 × 14,864.88
  4. Step 4: Simplify right side
    21,241.50x = 435,463,092.03
  5. Step 5: Solve for x
    x = 435,463,092.03/21,241.50
  6. Step 6: Final answer
    x = 20,500.58

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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.