Home / 40,476.16-60,716.40-12,772

Finding the Fourth Proportional to 40,476.16, 60,716.40 and 12,772

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Solution

The fourth proportional to 40,476.16, 60,716.40 and 12,772 is: 19,158.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,476.16 : 60,716.40 = 12,772 : x
  2. Step 2: Convert to fraction form
    40,476.16/60,716.40 = 12,772/x
  3. Step 3: Cross multiply
    40,476.16x = 60,716.40 × 12,772
  4. Step 4: Simplify right side
    40,476.16x = 775,469,860.80
  5. Step 5: Solve for x
    x = 775,469,860.80/40,476.16
  6. Step 6: Final answer
    x = 19,158.68

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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.