Home / 17,140.30-25,720.05-7,277.90

Finding the Fourth Proportional to 17,140.30, 25,720.05 and 7,277.90

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Solution

The fourth proportional to 17,140.30, 25,720.05 and 7,277.90 is: 10,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,140.30 : 25,720.05 = 7,277.90 : x
  2. Step 2: Convert to fraction form
    17,140.30/25,720.05 = 7,277.90/x
  3. Step 3: Cross multiply
    17,140.30x = 25,720.05 × 7,277.90
  4. Step 4: Simplify right side
    17,140.30x = 187,187,951.90
  5. Step 5: Solve for x
    x = 187,187,951.90/17,140.30
  6. Step 6: Final answer
    x = 10,920.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.