Home / 40,147.18-60,258.12-20,440.48

Finding the Fourth Proportional to 40,147.18, 60,258.12 and 20,440.48

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Solution

The fourth proportional to 40,147.18, 60,258.12 and 20,440.48 is: 30,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,147.18 : 60,258.12 = 20,440.48 : x
  2. Step 2: Convert to fraction form
    40,147.18/60,258.12 = 20,440.48/x
  3. Step 3: Cross multiply
    40,147.18x = 60,258.12 × 20,440.48
  4. Step 4: Simplify right side
    40,147.18x = 1,231,704,896.70
  5. Step 5: Solve for x
    x = 1,231,704,896.70/40,147.18
  6. Step 6: Final answer
    x = 30,679.74

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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.