Home / 31,154.20-42,992.70-17,007.14

Finding the Fourth Proportional to 31,154.20, 42,992.70 and 17,007.14

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Solution

The fourth proportional to 31,154.20, 42,992.70 and 17,007.14 is: 23,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.20 : 42,992.70 = 17,007.14 : x
  2. Step 2: Convert to fraction form
    31,154.20/42,992.70 = 17,007.14/x
  3. Step 3: Cross multiply
    31,154.20x = 42,992.70 × 17,007.14
  4. Step 4: Simplify right side
    31,154.20x = 731,182,867.88
  5. Step 5: Solve for x
    x = 731,182,867.88/31,154.20
  6. Step 6: Final answer
    x = 23,469.80

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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.