Home / 25,787.64-38,668.70-9,145.18

Finding the Fourth Proportional to 25,787.64, 38,668.70 and 9,145.18

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Solution

The fourth proportional to 25,787.64, 38,668.70 and 9,145.18 is: 13,713.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.64 : 38,668.70 = 9,145.18 : x
  2. Step 2: Convert to fraction form
    25,787.64/38,668.70 = 9,145.18/x
  3. Step 3: Cross multiply
    25,787.64x = 38,668.70 × 9,145.18
  4. Step 4: Simplify right side
    25,787.64x = 353,632,221.87
  5. Step 5: Solve for x
    x = 353,632,221.87/25,787.64
  6. Step 6: Final answer
    x = 13,713.24

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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.