Home / 31,523.55-47,278.77-9,331.71

Finding the Fourth Proportional to 31,523.55, 47,278.77 and 9,331.71

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Solution

The fourth proportional to 31,523.55, 47,278.77 and 9,331.71 is: 13,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,523.55 : 47,278.77 = 9,331.71 : x
  2. Step 2: Convert to fraction form
    31,523.55/47,278.77 = 9,331.71/x
  3. Step 3: Cross multiply
    31,523.55x = 47,278.77 × 9,331.71
  4. Step 4: Simplify right side
    31,523.55x = 441,191,770.80
  5. Step 5: Solve for x
    x = 441,191,770.80/31,523.55
  6. Step 6: Final answer
    x = 13,995.62

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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.