Home / 31,511.39-47,277.10-9,324.88

Finding the Fourth Proportional to 31,511.39, 47,277.10 and 9,324.88

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Solution

The fourth proportional to 31,511.39, 47,277.10 and 9,324.88 is: 13,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.39 : 47,277.10 = 9,324.88 : x
  2. Step 2: Convert to fraction form
    31,511.39/47,277.10 = 9,324.88/x
  3. Step 3: Cross multiply
    31,511.39x = 47,277.10 × 9,324.88
  4. Step 4: Simplify right side
    31,511.39x = 440,853,047.86
  5. Step 5: Solve for x
    x = 440,853,047.86/31,511.39
  6. Step 6: Final answer
    x = 13,990.28

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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.