Home / 47,422.87-71,134.31-12,362.43

Finding the Fourth Proportional to 47,422.87, 71,134.31 and 12,362.43

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Solution

The fourth proportional to 47,422.87, 71,134.31 and 12,362.43 is: 18,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,422.87 : 71,134.31 = 12,362.43 : x
  2. Step 2: Convert to fraction form
    47,422.87/71,134.31 = 12,362.43/x
  3. Step 3: Cross multiply
    47,422.87x = 71,134.31 × 12,362.43
  4. Step 4: Simplify right side
    47,422.87x = 879,392,927.97
  5. Step 5: Solve for x
    x = 879,392,927.97/47,422.87
  6. Step 6: Final answer
    x = 18,543.65

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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.