Home / 25,660.80-38,492.28-8,131.32

Finding the Fourth Proportional to 25,660.80, 38,492.28 and 8,131.32

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Solution

The fourth proportional to 25,660.80, 38,492.28 and 8,131.32 is: 12,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,660.80 : 38,492.28 = 8,131.32 : x
  2. Step 2: Convert to fraction form
    25,660.80/38,492.28 = 8,131.32/x
  3. Step 3: Cross multiply
    25,660.80x = 38,492.28 × 8,131.32
  4. Step 4: Simplify right side
    25,660.80x = 312,993,046.21
  5. Step 5: Solve for x
    x = 312,993,046.21/25,660.80
  6. Step 6: Final answer
    x = 12,197.32

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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.