Home / 25,955.28-38,908.29-8,412.78

Finding the Fourth Proportional to 25,955.28, 38,908.29 and 8,412.78

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Solution

The fourth proportional to 25,955.28, 38,908.29 and 8,412.78 is: 12,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,955.28 : 38,908.29 = 8,412.78 : x
  2. Step 2: Convert to fraction form
    25,955.28/38,908.29 = 8,412.78/x
  3. Step 3: Cross multiply
    25,955.28x = 38,908.29 × 8,412.78
  4. Step 4: Simplify right side
    25,955.28x = 327,326,883.95
  5. Step 5: Solve for x
    x = 327,326,883.95/25,955.28
  6. Step 6: Final answer
    x = 12,611.19

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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.