Home / 42,504.08-63,756-20,249.96

Finding the Fourth Proportional to 42,504.08, 63,756 and 20,249.96

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Solution

The fourth proportional to 42,504.08, 63,756 and 20,249.96 is: 30,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,504.08 : 63,756 = 20,249.96 : x
  2. Step 2: Convert to fraction form
    42,504.08/63,756 = 20,249.96/x
  3. Step 3: Cross multiply
    42,504.08x = 63,756 × 20,249.96
  4. Step 4: Simplify right side
    42,504.08x = 1,291,056,449.76
  5. Step 5: Solve for x
    x = 1,291,056,449.76/42,504.08
  6. Step 6: Final answer
    x = 30,374.88

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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.