Home / 15,082.40-22,620.94-3,989.25

Finding the Fourth Proportional to 15,082.40, 22,620.94 and 3,989.25

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Solution

The fourth proportional to 15,082.40, 22,620.94 and 3,989.25 is: 5,983.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082.40 : 22,620.94 = 3,989.25 : x
  2. Step 2: Convert to fraction form
    15,082.40/22,620.94 = 3,989.25/x
  3. Step 3: Cross multiply
    15,082.40x = 22,620.94 × 3,989.25
  4. Step 4: Simplify right side
    15,082.40x = 90,240,574.92
  5. Step 5: Solve for x
    x = 90,240,574.92/15,082.40
  6. Step 6: Final answer
    x = 5,983.17

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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.