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Finding the Fourth Proportional to 25,876.92, 35,701.92 and 15,116.88

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Solution

The fourth proportional to 25,876.92, 35,701.92 and 15,116.88 is: 20,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,876.92 : 35,701.92 = 15,116.88 : x
  2. Step 2: Convert to fraction form
    25,876.92/35,701.92 = 15,116.88/x
  3. Step 3: Cross multiply
    25,876.92x = 35,701.92 × 15,116.88
  4. Step 4: Simplify right side
    25,876.92x = 539,701,640.41
  5. Step 5: Solve for x
    x = 539,701,640.41/25,876.92
  6. Step 6: Final answer
    x = 20,856.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.