Home / 47,689.44-71,539.92-12,629.76

Finding the Fourth Proportional to 47,689.44, 71,539.92 and 12,629.76

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Solution

The fourth proportional to 47,689.44, 71,539.92 and 12,629.76 is: 18,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,689.44 : 71,539.92 = 12,629.76 : x
  2. Step 2: Convert to fraction form
    47,689.44/71,539.92 = 12,629.76/x
  3. Step 3: Cross multiply
    47,689.44x = 71,539.92 × 12,629.76
  4. Step 4: Simplify right side
    47,689.44x = 903,532,020.02
  5. Step 5: Solve for x
    x = 903,532,020.02/47,689.44
  6. Step 6: Final answer
    x = 18,946.17

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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.