Home / 47,491.08-71,217.15-21,177.84

Finding the Fourth Proportional to 47,491.08, 71,217.15 and 21,177.84

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Solution

The fourth proportional to 47,491.08, 71,217.15 and 21,177.84 is: 31,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,491.08 : 71,217.15 = 21,177.84 : x
  2. Step 2: Convert to fraction form
    47,491.08/71,217.15 = 21,177.84/x
  3. Step 3: Cross multiply
    47,491.08x = 71,217.15 × 21,177.84
  4. Step 4: Simplify right side
    47,491.08x = 1,508,225,407.96
  5. Step 5: Solve for x
    x = 1,508,225,407.96/47,491.08
  6. Step 6: Final answer
    x = 31,758.08

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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.