Home / 25,470.10-38,186.70-17,129.44

Finding the Fourth Proportional to 25,470.10, 38,186.70 and 17,129.44

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Solution

The fourth proportional to 25,470.10, 38,186.70 and 17,129.44 is: 25,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,470.10 : 38,186.70 = 17,129.44 : x
  2. Step 2: Convert to fraction form
    25,470.10/38,186.70 = 17,129.44/x
  3. Step 3: Cross multiply
    25,470.10x = 38,186.70 × 17,129.44
  4. Step 4: Simplify right side
    25,470.10x = 654,116,786.45
  5. Step 5: Solve for x
    x = 654,116,786.45/25,470.10
  6. Step 6: Final answer
    x = 25,681.75

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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.