Home / 30,471.08-42,061.61-27,278.60

Finding the Fourth Proportional to 30,471.08, 42,061.61 and 27,278.60

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Solution

The fourth proportional to 30,471.08, 42,061.61 and 27,278.60 is: 37,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471.08 : 42,061.61 = 27,278.60 : x
  2. Step 2: Convert to fraction form
    30,471.08/42,061.61 = 27,278.60/x
  3. Step 3: Cross multiply
    30,471.08x = 42,061.61 × 27,278.60
  4. Step 4: Simplify right side
    30,471.08x = 1,147,381,692.43
  5. Step 5: Solve for x
    x = 1,147,381,692.43/30,471.08
  6. Step 6: Final answer
    x = 37,654.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.