Home / 10,420.43-15,630.17-3,024.72

Finding the Fourth Proportional to 10,420.43, 15,630.17 and 3,024.72

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Solution

The fourth proportional to 10,420.43, 15,630.17 and 3,024.72 is: 4,536.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.43 : 15,630.17 = 3,024.72 : x
  2. Step 2: Convert to fraction form
    10,420.43/15,630.17 = 3,024.72/x
  3. Step 3: Cross multiply
    10,420.43x = 15,630.17 × 3,024.72
  4. Step 4: Simplify right side
    10,420.43x = 47,276,872.68
  5. Step 5: Solve for x
    x = 47,276,872.68/10,420.43
  6. Step 6: Final answer
    x = 4,536.94

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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.