Home / 20,737.28-31,099.04-10,874.56

Finding the Fourth Proportional to 20,737.28, 31,099.04 and 10,874.56

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Solution

The fourth proportional to 20,737.28, 31,099.04 and 10,874.56 is: 16,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.28 : 31,099.04 = 10,874.56 : x
  2. Step 2: Convert to fraction form
    20,737.28/31,099.04 = 10,874.56/x
  3. Step 3: Cross multiply
    20,737.28x = 31,099.04 × 10,874.56
  4. Step 4: Simplify right side
    20,737.28x = 338,188,376.42
  5. Step 5: Solve for x
    x = 338,188,376.42/20,737.28
  6. Step 6: Final answer
    x = 16,308.23

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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.