Home / 25,813.20-38,719.80-10,230.78

Finding the Fourth Proportional to 25,813.20, 38,719.80 and 10,230.78

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Solution

The fourth proportional to 25,813.20, 38,719.80 and 10,230.78 is: 15,346.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,813.20 : 38,719.80 = 10,230.78 : x
  2. Step 2: Convert to fraction form
    25,813.20/38,719.80 = 10,230.78/x
  3. Step 3: Cross multiply
    25,813.20x = 38,719.80 × 10,230.78
  4. Step 4: Simplify right side
    25,813.20x = 396,133,755.44
  5. Step 5: Solve for x
    x = 396,133,755.44/25,813.20
  6. Step 6: Final answer
    x = 15,346.17

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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.