Home / 31,553.20-47,331.02-8,179.03

Finding the Fourth Proportional to 31,553.20, 47,331.02 and 8,179.03

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Solution

The fourth proportional to 31,553.20, 47,331.02 and 8,179.03 is: 12,268.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,553.20 : 47,331.02 = 8,179.03 : x
  2. Step 2: Convert to fraction form
    31,553.20/47,331.02 = 8,179.03/x
  3. Step 3: Cross multiply
    31,553.20x = 47,331.02 × 8,179.03
  4. Step 4: Simplify right side
    31,553.20x = 387,121,832.51
  5. Step 5: Solve for x
    x = 387,121,832.51/31,553.20
  6. Step 6: Final answer
    x = 12,268.86

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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.