Home / 25,715.70-38,589.93-17,186.40

Finding the Fourth Proportional to 25,715.70, 38,589.93 and 17,186.40

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Solution

The fourth proportional to 25,715.70, 38,589.93 and 17,186.40 is: 25,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.70 : 38,589.93 = 17,186.40 : x
  2. Step 2: Convert to fraction form
    25,715.70/38,589.93 = 17,186.40/x
  3. Step 3: Cross multiply
    25,715.70x = 38,589.93 × 17,186.40
  4. Step 4: Simplify right side
    25,715.70x = 663,221,972.95
  5. Step 5: Solve for x
    x = 663,221,972.95/25,715.70
  6. Step 6: Final answer
    x = 25,790.55

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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.