Home / 31,479-47,155.17-14,588.34

Finding the Fourth Proportional to 31,479, 47,155.17 and 14,588.34

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Solution

The fourth proportional to 31,479, 47,155.17 and 14,588.34 is: 21,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,479 : 47,155.17 = 14,588.34 : x
  2. Step 2: Convert to fraction form
    31,479/47,155.17 = 14,588.34/x
  3. Step 3: Cross multiply
    31,479x = 47,155.17 × 14,588.34
  4. Step 4: Simplify right side
    31,479x = 687,915,652.72
  5. Step 5: Solve for x
    x = 687,915,652.72/31,479
  6. Step 6: Final answer
    x = 21,853.16

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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.