Home / 25,719.68-38,579.52-10,137.20

Finding the Fourth Proportional to 25,719.68, 38,579.52 and 10,137.20

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Solution

The fourth proportional to 25,719.68, 38,579.52 and 10,137.20 is: 15,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.68 : 38,579.52 = 10,137.20 : x
  2. Step 2: Convert to fraction form
    25,719.68/38,579.52 = 10,137.20/x
  3. Step 3: Cross multiply
    25,719.68x = 38,579.52 × 10,137.20
  4. Step 4: Simplify right side
    25,719.68x = 391,088,310.14
  5. Step 5: Solve for x
    x = 391,088,310.14/25,719.68
  6. Step 6: Final answer
    x = 15,205.80

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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.