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Finding the Fourth Proportional to 40,295.20, 60,399.60 and 15,325.60

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Solution

The fourth proportional to 40,295.20, 60,399.60 and 15,325.60 is: 22,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,295.20 : 60,399.60 = 15,325.60 : x
  2. Step 2: Convert to fraction form
    40,295.20/60,399.60 = 15,325.60/x
  3. Step 3: Cross multiply
    40,295.20x = 60,399.60 × 15,325.60
  4. Step 4: Simplify right side
    40,295.20x = 925,660,109.76
  5. Step 5: Solve for x
    x = 925,660,109.76/40,295.20
  6. Step 6: Final answer
    x = 22,971.97

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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.