Home / 47,715.28-71,572.88-12,176.60

Finding the Fourth Proportional to 47,715.28, 71,572.88 and 12,176.60

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Solution

The fourth proportional to 47,715.28, 71,572.88 and 12,176.60 is: 18,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.28 : 71,572.88 = 12,176.60 : x
  2. Step 2: Convert to fraction form
    47,715.28/71,572.88 = 12,176.60/x
  3. Step 3: Cross multiply
    47,715.28x = 71,572.88 × 12,176.60
  4. Step 4: Simplify right side
    47,715.28x = 871,514,555.71
  5. Step 5: Solve for x
    x = 871,514,555.71/47,715.28
  6. Step 6: Final answer
    x = 18,264.89

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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.