Home / 25,819.60-35,638.68-15,212.66

Finding the Fourth Proportional to 25,819.60, 35,638.68 and 15,212.66

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Solution

The fourth proportional to 25,819.60, 35,638.68 and 15,212.66 is: 20,997.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,819.60 : 35,638.68 = 15,212.66 : x
  2. Step 2: Convert to fraction form
    25,819.60/35,638.68 = 15,212.66/x
  3. Step 3: Cross multiply
    25,819.60x = 35,638.68 × 15,212.66
  4. Step 4: Simplify right side
    25,819.60x = 542,159,121.69
  5. Step 5: Solve for x
    x = 542,159,121.69/25,819.60
  6. Step 6: Final answer
    x = 20,997.97

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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.