Home / 42,242.28-63,380.94-18,537.47

Finding the Fourth Proportional to 42,242.28, 63,380.94 and 18,537.47

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Solution

The fourth proportional to 42,242.28, 63,380.94 and 18,537.47 is: 27,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,242.28 : 63,380.94 = 18,537.47 : x
  2. Step 2: Convert to fraction form
    42,242.28/63,380.94 = 18,537.47/x
  3. Step 3: Cross multiply
    42,242.28x = 63,380.94 × 18,537.47
  4. Step 4: Simplify right side
    42,242.28x = 1,174,922,273.82
  5. Step 5: Solve for x
    x = 1,174,922,273.82/42,242.28
  6. Step 6: Final answer
    x = 27,813.89

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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.