Home / 31,147.20-42,982.52-17,000.08

Finding the Fourth Proportional to 31,147.20, 42,982.52 and 17,000.08

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Solution

The fourth proportional to 31,147.20, 42,982.52 and 17,000.08 is: 23,459.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.20 : 42,982.52 = 17,000.08 : x
  2. Step 2: Convert to fraction form
    31,147.20/42,982.52 = 17,000.08/x
  3. Step 3: Cross multiply
    31,147.20x = 42,982.52 × 17,000.08
  4. Step 4: Simplify right side
    31,147.20x = 730,706,086.14
  5. Step 5: Solve for x
    x = 730,706,086.14/31,147.20
  6. Step 6: Final answer
    x = 23,459.77

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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.