Home / 40,255.28-60,355.38-20,495.60

Finding the Fourth Proportional to 40,255.28, 60,355.38 and 20,495.60

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Solution

The fourth proportional to 40,255.28, 60,355.38 and 20,495.60 is: 30,729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,255.28 : 60,355.38 = 20,495.60 : x
  2. Step 2: Convert to fraction form
    40,255.28/60,355.38 = 20,495.60/x
  3. Step 3: Cross multiply
    40,255.28x = 60,355.38 × 20,495.60
  4. Step 4: Simplify right side
    40,255.28x = 1,237,019,726.33
  5. Step 5: Solve for x
    x = 1,237,019,726.33/40,255.28
  6. Step 6: Final answer
    x = 30,729.38

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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.