Home / 40,458.27-60,685.20-12,378.33

Finding the Fourth Proportional to 40,458.27, 60,685.20 and 12,378.33

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Solution

The fourth proportional to 40,458.27, 60,685.20 and 12,378.33 is: 18,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,458.27 : 60,685.20 = 12,378.33 : x
  2. Step 2: Convert to fraction form
    40,458.27/60,685.20 = 12,378.33/x
  3. Step 3: Cross multiply
    40,458.27x = 60,685.20 × 12,378.33
  4. Step 4: Simplify right side
    40,458.27x = 751,181,261.04
  5. Step 5: Solve for x
    x = 751,181,261.04/40,458.27
  6. Step 6: Final answer
    x = 18,566.82

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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.