Home / 31,154.18-42,992.42-17,007.03

Finding the Fourth Proportional to 31,154.18, 42,992.42 and 17,007.03

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Solution

The fourth proportional to 31,154.18, 42,992.42 and 17,007.03 is: 23,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.18 : 42,992.42 = 17,007.03 : x
  2. Step 2: Convert to fraction form
    31,154.18/42,992.42 = 17,007.03/x
  3. Step 3: Cross multiply
    31,154.18x = 42,992.42 × 17,007.03
  4. Step 4: Simplify right side
    31,154.18x = 731,173,291.68
  5. Step 5: Solve for x
    x = 731,173,291.68/31,154.18
  6. Step 6: Final answer
    x = 23,469.51

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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.