Home / 47,607.48-71,405.46-12,549.78

Finding the Fourth Proportional to 47,607.48, 71,405.46 and 12,549.78

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Solution

The fourth proportional to 47,607.48, 71,405.46 and 12,549.78 is: 18,823.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,607.48 : 71,405.46 = 12,549.78 : x
  2. Step 2: Convert to fraction form
    47,607.48/71,405.46 = 12,549.78/x
  3. Step 3: Cross multiply
    47,607.48x = 71,405.46 × 12,549.78
  4. Step 4: Simplify right side
    47,607.48x = 896,122,813.80
  5. Step 5: Solve for x
    x = 896,122,813.80/47,607.48
  6. Step 6: Final answer
    x = 18,823.15

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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.