Home / 25,819.79-35,626.95-15,211.53

Finding the Fourth Proportional to 25,819.79, 35,626.95 and 15,211.53

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Solution

The fourth proportional to 25,819.79, 35,626.95 and 15,211.53 is: 20,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,819.79 : 35,626.95 = 15,211.53 : x
  2. Step 2: Convert to fraction form
    25,819.79/35,626.95 = 15,211.53/x
  3. Step 3: Cross multiply
    25,819.79x = 35,626.95 × 15,211.53
  4. Step 4: Simplify right side
    25,819.79x = 541,940,418.73
  5. Step 5: Solve for x
    x = 541,940,418.73/25,819.79
  6. Step 6: Final answer
    x = 20,989.35

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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.