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Finding the Fourth Proportional to 17,125.20, 25,687.80 and 13,232.40

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Solution

The fourth proportional to 17,125.20, 25,687.80 and 13,232.40 is: 19,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.20 : 25,687.80 = 13,232.40 : x
  2. Step 2: Convert to fraction form
    17,125.20/25,687.80 = 13,232.40/x
  3. Step 3: Cross multiply
    17,125.20x = 25,687.80 × 13,232.40
  4. Step 4: Simplify right side
    17,125.20x = 339,911,244.72
  5. Step 5: Solve for x
    x = 339,911,244.72/17,125.20
  6. Step 6: Final answer
    x = 19,848.60

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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.