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Finding the Fourth Proportional to 25,652.70, 38,409.54 and 13,314.78

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Solution

The fourth proportional to 25,652.70, 38,409.54 and 13,314.78 is: 19,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,652.70 : 38,409.54 = 13,314.78 : x
  2. Step 2: Convert to fraction form
    25,652.70/38,409.54 = 13,314.78/x
  3. Step 3: Cross multiply
    25,652.70x = 38,409.54 × 13,314.78
  4. Step 4: Simplify right side
    25,652.70x = 511,414,575.00
  5. Step 5: Solve for x
    x = 511,414,575.00/25,652.70
  6. Step 6: Final answer
    x = 19,936.09

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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.