Home / 17,980.20-26,982.45-10,082.70

Finding the Fourth Proportional to 17,980.20, 26,982.45 and 10,082.70

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Solution

The fourth proportional to 17,980.20, 26,982.45 and 10,082.70 is: 15,130.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,980.20 : 26,982.45 = 10,082.70 : x
  2. Step 2: Convert to fraction form
    17,980.20/26,982.45 = 10,082.70/x
  3. Step 3: Cross multiply
    17,980.20x = 26,982.45 × 10,082.70
  4. Step 4: Simplify right side
    17,980.20x = 272,055,948.62
  5. Step 5: Solve for x
    x = 272,055,948.62/17,980.20
  6. Step 6: Final answer
    x = 15,130.86

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1.5x scale

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.