Home / 15,428.92-23,143.50-5,040.70

Finding the Fourth Proportional to 15,428.92, 23,143.50 and 5,040.70

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Solution

The fourth proportional to 15,428.92, 23,143.50 and 5,040.70 is: 7,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.92 : 23,143.50 = 5,040.70 : x
  2. Step 2: Convert to fraction form
    15,428.92/23,143.50 = 5,040.70/x
  3. Step 3: Cross multiply
    15,428.92x = 23,143.50 × 5,040.70
  4. Step 4: Simplify right side
    15,428.92x = 116,659,440.45
  5. Step 5: Solve for x
    x = 116,659,440.45/15,428.92
  6. Step 6: Final answer
    x = 7,561.09

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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.