Home / 20,932.96-31,373.91-11,572.60

Finding the Fourth Proportional to 20,932.96, 31,373.91 and 11,572.60

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Solution

The fourth proportional to 20,932.96, 31,373.91 and 11,572.60 is: 17,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.96 : 31,373.91 = 11,572.60 : x
  2. Step 2: Convert to fraction form
    20,932.96/31,373.91 = 11,572.60/x
  3. Step 3: Cross multiply
    20,932.96x = 31,373.91 × 11,572.60
  4. Step 4: Simplify right side
    20,932.96x = 363,077,710.87
  5. Step 5: Solve for x
    x = 363,077,710.87/20,932.96
  6. Step 6: Final answer
    x = 17,344.79

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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.