Home / 20,158.10-30,269.55-15,233.30

Finding the Fourth Proportional to 20,158.10, 30,269.55 and 15,233.30

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Solution

The fourth proportional to 20,158.10, 30,269.55 and 15,233.30 is: 22,874.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.10 : 30,269.55 = 15,233.30 : x
  2. Step 2: Convert to fraction form
    20,158.10/30,269.55 = 15,233.30/x
  3. Step 3: Cross multiply
    20,158.10x = 30,269.55 × 15,233.30
  4. Step 4: Simplify right side
    20,158.10x = 461,105,136.02
  5. Step 5: Solve for x
    x = 461,105,136.02/20,158.10
  6. Step 6: Final answer
    x = 22,874.43

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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.