Home / 25,455.60-38,183.40-10,660.55

Finding the Fourth Proportional to 25,455.60, 38,183.40 and 10,660.55

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Solution

The fourth proportional to 25,455.60, 38,183.40 and 10,660.55 is: 15,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.60 : 38,183.40 = 10,660.55 : x
  2. Step 2: Convert to fraction form
    25,455.60/38,183.40 = 10,660.55/x
  3. Step 3: Cross multiply
    25,455.60x = 38,183.40 × 10,660.55
  4. Step 4: Simplify right side
    25,455.60x = 407,055,853.95
  5. Step 5: Solve for x
    x = 407,055,853.95/25,455.60
  6. Step 6: Final answer
    x = 15,990.82

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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.