Home / 25,878.39-35,716.46-20,299.11

Finding the Fourth Proportional to 25,878.39, 35,716.46 and 20,299.11

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Solution

The fourth proportional to 25,878.39, 35,716.46 and 20,299.11 is: 28,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.39 : 35,716.46 = 20,299.11 : x
  2. Step 2: Convert to fraction form
    25,878.39/35,716.46 = 20,299.11/x
  3. Step 3: Cross multiply
    25,878.39x = 35,716.46 × 20,299.11
  4. Step 4: Simplify right side
    25,878.39x = 725,012,248.86
  5. Step 5: Solve for x
    x = 725,012,248.86/25,878.39
  6. Step 6: Final answer
    x = 28,016.13

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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.