Home / 25,819.60-38,729.40-10,235.20

Finding the Fourth Proportional to 25,819.60, 38,729.40 and 10,235.20

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Solution

The fourth proportional to 25,819.60, 38,729.40 and 10,235.20 is: 15,352.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,819.60 : 38,729.40 = 10,235.20 : x
  2. Step 2: Convert to fraction form
    25,819.60/38,729.40 = 10,235.20/x
  3. Step 3: Cross multiply
    25,819.60x = 38,729.40 × 10,235.20
  4. Step 4: Simplify right side
    25,819.60x = 396,403,154.88
  5. Step 5: Solve for x
    x = 396,403,154.88/25,819.60
  6. Step 6: Final answer
    x = 15,352.80

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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.