Home / 31,147.68-42,983.88-17,000.64

Finding the Fourth Proportional to 31,147.68, 42,983.88 and 17,000.64

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Solution

The fourth proportional to 31,147.68, 42,983.88 and 17,000.64 is: 23,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.68 : 42,983.88 = 17,000.64 : x
  2. Step 2: Convert to fraction form
    31,147.68/42,983.88 = 17,000.64/x
  3. Step 3: Cross multiply
    31,147.68x = 42,983.88 × 17,000.64
  4. Step 4: Simplify right side
    31,147.68x = 730,753,469.68
  5. Step 5: Solve for x
    x = 730,753,469.68/31,147.68
  6. Step 6: Final answer
    x = 23,460.93

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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.