Home / 42,185.97-63,280.08-18,481.32

Finding the Fourth Proportional to 42,185.97, 63,280.08 and 18,481.32

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Solution

The fourth proportional to 42,185.97, 63,280.08 and 18,481.32 is: 27,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,185.97 : 63,280.08 = 18,481.32 : x
  2. Step 2: Convert to fraction form
    42,185.97/63,280.08 = 18,481.32/x
  3. Step 3: Cross multiply
    42,185.97x = 63,280.08 × 18,481.32
  4. Step 4: Simplify right side
    42,185.97x = 1,169,499,408.11
  5. Step 5: Solve for x
    x = 1,169,499,408.11/42,185.97
  6. Step 6: Final answer
    x = 27,722.47

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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.