Home / 10,438.20-15,658.31-3,042.50

Finding the Fourth Proportional to 10,438.20, 15,658.31 and 3,042.50

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Solution

The fourth proportional to 10,438.20, 15,658.31 and 3,042.50 is: 4,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,438.20 : 15,658.31 = 3,042.50 : x
  2. Step 2: Convert to fraction form
    10,438.20/15,658.31 = 3,042.50/x
  3. Step 3: Cross multiply
    10,438.20x = 15,658.31 × 3,042.50
  4. Step 4: Simplify right side
    10,438.20x = 47,640,337.49
  5. Step 5: Solve for x
    x = 47,640,337.49/10,438.20
  6. Step 6: Final answer
    x = 4,564.04

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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.