Home / 40,964.20-61,397.70-21,232.60

Finding the Fourth Proportional to 40,964.20, 61,397.70 and 21,232.60

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Solution

The fourth proportional to 40,964.20, 61,397.70 and 21,232.60 is: 31,823.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,964.20 : 61,397.70 = 21,232.60 : x
  2. Step 2: Convert to fraction form
    40,964.20/61,397.70 = 21,232.60/x
  3. Step 3: Cross multiply
    40,964.20x = 61,397.70 × 21,232.60
  4. Step 4: Simplify right side
    40,964.20x = 1,303,632,805.02
  5. Step 5: Solve for x
    x = 1,303,632,805.02/40,964.20
  6. Step 6: Final answer
    x = 31,823.71

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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.