Home / 42,418.80-63,630.72-11,253.96

Finding the Fourth Proportional to 42,418.80, 63,630.72 and 11,253.96

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Solution

The fourth proportional to 42,418.80, 63,630.72 and 11,253.96 is: 16,881.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.80 : 63,630.72 = 11,253.96 : x
  2. Step 2: Convert to fraction form
    42,418.80/63,630.72 = 11,253.96/x
  3. Step 3: Cross multiply
    42,418.80x = 63,630.72 × 11,253.96
  4. Step 4: Simplify right side
    42,418.80x = 716,097,577.65
  5. Step 5: Solve for x
    x = 716,097,577.65/42,418.80
  6. Step 6: Final answer
    x = 16,881.61

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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.