Home / 20,923.52-31,390.20-6,132.08

Finding the Fourth Proportional to 20,923.52, 31,390.20 and 6,132.08

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Solution

The fourth proportional to 20,923.52, 31,390.20 and 6,132.08 is: 9,199.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.52 : 31,390.20 = 6,132.08 : x
  2. Step 2: Convert to fraction form
    20,923.52/31,390.20 = 6,132.08/x
  3. Step 3: Cross multiply
    20,923.52x = 31,390.20 × 6,132.08
  4. Step 4: Simplify right side
    20,923.52x = 192,487,217.62
  5. Step 5: Solve for x
    x = 192,487,217.62/20,923.52
  6. Step 6: Final answer
    x = 9,199.56

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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.