Home / 40,619.36-60,925.20-12,531.88

Finding the Fourth Proportional to 40,619.36, 60,925.20 and 12,531.88

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Solution

The fourth proportional to 40,619.36, 60,925.20 and 12,531.88 is: 18,796.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,619.36 : 60,925.20 = 12,531.88 : x
  2. Step 2: Convert to fraction form
    40,619.36/60,925.20 = 12,531.88/x
  3. Step 3: Cross multiply
    40,619.36x = 60,925.20 × 12,531.88
  4. Step 4: Simplify right side
    40,619.36x = 763,507,295.38
  5. Step 5: Solve for x
    x = 763,507,295.38/40,619.36
  6. Step 6: Final answer
    x = 18,796.64

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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.