Home / 42,198.08-63,259.88-15,921.28

Finding the Fourth Proportional to 42,198.08, 63,259.88 and 15,921.28

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Solution

The fourth proportional to 42,198.08, 63,259.88 and 15,921.28 is: 23,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,198.08 : 63,259.88 = 15,921.28 : x
  2. Step 2: Convert to fraction form
    42,198.08/63,259.88 = 15,921.28/x
  3. Step 3: Cross multiply
    42,198.08x = 63,259.88 × 15,921.28
  4. Step 4: Simplify right side
    42,198.08x = 1,007,178,262.25
  5. Step 5: Solve for x
    x = 1,007,178,262.25/42,198.08
  6. Step 6: Final answer
    x = 23,867.87

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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.