Home / 31,294.20-43,186.20-17,147.55

Finding the Fourth Proportional to 31,294.20, 43,186.20 and 17,147.55

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Solution

The fourth proportional to 31,294.20, 43,186.20 and 17,147.55 is: 23,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,294.20 : 43,186.20 = 17,147.55 : x
  2. Step 2: Convert to fraction form
    31,294.20/43,186.20 = 17,147.55/x
  3. Step 3: Cross multiply
    31,294.20x = 43,186.20 × 17,147.55
  4. Step 4: Simplify right side
    31,294.20x = 740,537,523.81
  5. Step 5: Solve for x
    x = 740,537,523.81/31,294.20
  6. Step 6: Final answer
    x = 23,663.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.