Home / 47,478.92-71,226.26-21,182.66

Finding the Fourth Proportional to 47,478.92, 71,226.26 and 21,182.66

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Solution

The fourth proportional to 47,478.92, 71,226.26 and 21,182.66 is: 31,777.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,478.92 : 71,226.26 = 21,182.66 : x
  2. Step 2: Convert to fraction form
    47,478.92/71,226.26 = 21,182.66/x
  3. Step 3: Cross multiply
    47,478.92x = 71,226.26 × 21,182.66
  4. Step 4: Simplify right side
    47,478.92x = 1,508,761,648.65
  5. Step 5: Solve for x
    x = 1,508,761,648.65/47,478.92
  6. Step 6: Final answer
    x = 31,777.51

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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.