Home / 40,939.20-61,365.60-15,969.60

Finding the Fourth Proportional to 40,939.20, 61,365.60 and 15,969.60

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Solution

The fourth proportional to 40,939.20, 61,365.60 and 15,969.60 is: 23,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,939.20 : 61,365.60 = 15,969.60 : x
  2. Step 2: Convert to fraction form
    40,939.20/61,365.60 = 15,969.60/x
  3. Step 3: Cross multiply
    40,939.20x = 61,365.60 × 15,969.60
  4. Step 4: Simplify right side
    40,939.20x = 979,984,085.76
  5. Step 5: Solve for x
    x = 979,984,085.76/40,939.20
  6. Step 6: Final answer
    x = 23,937.55

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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.