Home / 50,439.92-75,614.76-20,838.88

Finding the Fourth Proportional to 50,439.92, 75,614.76 and 20,838.88

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Solution

The fourth proportional to 50,439.92, 75,614.76 and 20,838.88 is: 31,239.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,439.92 : 75,614.76 = 20,838.88 : x
  2. Step 2: Convert to fraction form
    50,439.92/75,614.76 = 20,838.88/x
  3. Step 3: Cross multiply
    50,439.92x = 75,614.76 × 20,838.88
  4. Step 4: Simplify right side
    50,439.92x = 1,575,726,909.87
  5. Step 5: Solve for x
    x = 1,575,726,909.87/50,439.92
  6. Step 6: Final answer
    x = 31,239.68

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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.