Home / 42,219.68-63,351.42-18,543.89

Finding the Fourth Proportional to 42,219.68, 63,351.42 and 18,543.89

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Solution

The fourth proportional to 42,219.68, 63,351.42 and 18,543.89 is: 27,825.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,219.68 : 63,351.42 = 18,543.89 : x
  2. Step 2: Convert to fraction form
    42,219.68/63,351.42 = 18,543.89/x
  3. Step 3: Cross multiply
    42,219.68x = 63,351.42 × 18,543.89
  4. Step 4: Simplify right side
    42,219.68x = 1,174,781,684.63
  5. Step 5: Solve for x
    x = 1,174,781,684.63/42,219.68
  6. Step 6: Final answer
    x = 27,825.45

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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.