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Finding the Fourth Proportional to 34,853.78, 48,098.11 and 18,938.28

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Solution

The fourth proportional to 34,853.78, 48,098.11 and 18,938.28 is: 26,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,853.78 : 48,098.11 = 18,938.28 : x
  2. Step 2: Convert to fraction form
    34,853.78/48,098.11 = 18,938.28/x
  3. Step 3: Cross multiply
    34,853.78x = 48,098.11 × 18,938.28
  4. Step 4: Simplify right side
    34,853.78x = 910,895,474.65
  5. Step 5: Solve for x
    x = 910,895,474.65/34,853.78
  6. Step 6: Final answer
    x = 26,134.77

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1.5x scale

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.