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Finding the Fourth Proportional to 38,343.84, 57,474.52 and 18,578.76

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Solution

The fourth proportional to 38,343.84, 57,474.52 and 18,578.76 is: 27,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,343.84 : 57,474.52 = 18,578.76 : x
  2. Step 2: Convert to fraction form
    38,343.84/57,474.52 = 18,578.76/x
  3. Step 3: Cross multiply
    38,343.84x = 57,474.52 × 18,578.76
  4. Step 4: Simplify right side
    38,343.84x = 1,067,805,313.20
  5. Step 5: Solve for x
    x = 1,067,805,313.20/38,343.84
  6. Step 6: Final answer
    x = 27,848.16

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1.5x scale

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.