Home / 42,630.20-63,945.20-11,465.48

Finding the Fourth Proportional to 42,630.20, 63,945.20 and 11,465.48

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Solution

The fourth proportional to 42,630.20, 63,945.20 and 11,465.48 is: 17,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.20 : 63,945.20 = 11,465.48 : x
  2. Step 2: Convert to fraction form
    42,630.20/63,945.20 = 11,465.48/x
  3. Step 3: Cross multiply
    42,630.20x = 63,945.20 × 11,465.48
  4. Step 4: Simplify right side
    42,630.20x = 733,162,411.70
  5. Step 5: Solve for x
    x = 733,162,411.70/42,630.20
  6. Step 6: Final answer
    x = 17,198.19

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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.