Home / 47,712.62-71,568.94-12,655.02

Finding the Fourth Proportional to 47,712.62, 71,568.94 and 12,655.02

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Solution

The fourth proportional to 47,712.62, 71,568.94 and 12,655.02 is: 18,982.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.62 : 71,568.94 = 12,655.02 : x
  2. Step 2: Convert to fraction form
    47,712.62/71,568.94 = 12,655.02/x
  3. Step 3: Cross multiply
    47,712.62x = 71,568.94 × 12,655.02
  4. Step 4: Simplify right side
    47,712.62x = 905,706,367.08
  5. Step 5: Solve for x
    x = 905,706,367.08/47,712.62
  6. Step 6: Final answer
    x = 18,982.53

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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.