Home / 20,008.42-29,949.70-13,731.72

Finding the Fourth Proportional to 20,008.42, 29,949.70 and 13,731.72

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Solution

The fourth proportional to 20,008.42, 29,949.70 and 13,731.72 is: 20,554.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.42 : 29,949.70 = 13,731.72 : x
  2. Step 2: Convert to fraction form
    20,008.42/29,949.70 = 13,731.72/x
  3. Step 3: Cross multiply
    20,008.42x = 29,949.70 × 13,731.72
  4. Step 4: Simplify right side
    20,008.42x = 411,260,894.48
  5. Step 5: Solve for x
    x = 411,260,894.48/20,008.42
  6. Step 6: Final answer
    x = 20,554.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.