Home / 47,480.52-71,224.92-12,420.12

Finding the Fourth Proportional to 47,480.52, 71,224.92 and 12,420.12

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Solution

The fourth proportional to 47,480.52, 71,224.92 and 12,420.12 is: 18,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,480.52 : 71,224.92 = 12,420.12 : x
  2. Step 2: Convert to fraction form
    47,480.52/71,224.92 = 12,420.12/x
  3. Step 3: Cross multiply
    47,480.52x = 71,224.92 × 12,420.12
  4. Step 4: Simplify right side
    47,480.52x = 884,622,053.39
  5. Step 5: Solve for x
    x = 884,622,053.39/47,480.52
  6. Step 6: Final answer
    x = 18,631.26

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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.