Home / 42,178.18-63,269.97-15,531.34

Finding the Fourth Proportional to 42,178.18, 63,269.97 and 15,531.34

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Solution

The fourth proportional to 42,178.18, 63,269.97 and 15,531.34 is: 23,298.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,178.18 : 63,269.97 = 15,531.34 : x
  2. Step 2: Convert to fraction form
    42,178.18/63,269.97 = 15,531.34/x
  3. Step 3: Cross multiply
    42,178.18x = 63,269.97 × 15,531.34
  4. Step 4: Simplify right side
    42,178.18x = 982,667,415.86
  5. Step 5: Solve for x
    x = 982,667,415.86/42,178.18
  6. Step 6: Final answer
    x = 23,298.00

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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.