Home / 47,712.62-71,570.55-12,655.82

Finding the Fourth Proportional to 47,712.62, 71,570.55 and 12,655.82

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Solution

The fourth proportional to 47,712.62, 71,570.55 and 12,655.82 is: 18,984.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,712.62 : 71,570.55 = 12,655.82 : x
  2. Step 2: Convert to fraction form
    47,712.62/71,570.55 = 12,655.82/x
  3. Step 3: Cross multiply
    47,712.62x = 71,570.55 × 12,655.82
  4. Step 4: Simplify right side
    47,712.62x = 905,783,998.10
  5. Step 5: Solve for x
    x = 905,783,998.10/47,712.62
  6. Step 6: Final answer
    x = 18,984.16

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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.