Home / 47,616.48-71,418.96-12,558.78

Finding the Fourth Proportional to 47,616.48, 71,418.96 and 12,558.78

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Solution

The fourth proportional to 47,616.48, 71,418.96 and 12,558.78 is: 18,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,616.48 : 71,418.96 = 12,558.78 : x
  2. Step 2: Convert to fraction form
    47,616.48/71,418.96 = 12,558.78/x
  3. Step 3: Cross multiply
    47,616.48x = 71,418.96 × 12,558.78
  4. Step 4: Simplify right side
    47,616.48x = 896,935,006.47
  5. Step 5: Solve for x
    x = 896,935,006.47/47,616.48
  6. Step 6: Final answer
    x = 18,836.65

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1.5x scale

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.