Home / 25,969.32-38,959.56-8,438.76

Finding the Fourth Proportional to 25,969.32, 38,959.56 and 8,438.76

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Solution

The fourth proportional to 25,969.32, 38,959.56 and 8,438.76 is: 12,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.32 : 38,959.56 = 8,438.76 : x
  2. Step 2: Convert to fraction form
    25,969.32/38,959.56 = 8,438.76/x
  3. Step 3: Cross multiply
    25,969.32x = 38,959.56 × 8,438.76
  4. Step 4: Simplify right side
    25,969.32x = 328,770,376.55
  5. Step 5: Solve for x
    x = 328,770,376.55/25,969.32
  6. Step 6: Final answer
    x = 12,659.95

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1.5x scale

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.