Home / 25,388.52-38,084.56-7,856.04

Finding the Fourth Proportional to 25,388.52, 38,084.56 and 7,856.04

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Solution

The fourth proportional to 25,388.52, 38,084.56 and 7,856.04 is: 11,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.52 : 38,084.56 = 7,856.04 : x
  2. Step 2: Convert to fraction form
    25,388.52/38,084.56 = 7,856.04/x
  3. Step 3: Cross multiply
    25,388.52x = 38,084.56 × 7,856.04
  4. Step 4: Simplify right side
    25,388.52x = 299,193,826.74
  5. Step 5: Solve for x
    x = 299,193,826.74/25,388.52
  6. Step 6: Final answer
    x = 11,784.61

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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.