Home / 25,388.20-38,077.98-6,915.88

Finding the Fourth Proportional to 25,388.20, 38,077.98 and 6,915.88

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Solution

The fourth proportional to 25,388.20, 38,077.98 and 6,915.88 is: 10,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.20 : 38,077.98 = 6,915.88 : x
  2. Step 2: Convert to fraction form
    25,388.20/38,077.98 = 6,915.88/x
  3. Step 3: Cross multiply
    25,388.20x = 38,077.98 × 6,915.88
  4. Step 4: Simplify right side
    25,388.20x = 263,342,740.32
  5. Step 5: Solve for x
    x = 263,342,740.32/25,388.20
  6. Step 6: Final answer
    x = 10,372.64

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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.