Home / 40,645.94-60,974.78-12,568.30

Finding the Fourth Proportional to 40,645.94, 60,974.78 and 12,568.30

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Solution

The fourth proportional to 40,645.94, 60,974.78 and 12,568.30 is: 18,854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,645.94 : 60,974.78 = 12,568.30 : x
  2. Step 2: Convert to fraction form
    40,645.94/60,974.78 = 12,568.30/x
  3. Step 3: Cross multiply
    40,645.94x = 60,974.78 × 12,568.30
  4. Step 4: Simplify right side
    40,645.94x = 766,349,112.20
  5. Step 5: Solve for x
    x = 766,349,112.20/40,645.94
  6. Step 6: Final answer
    x = 18,854.26

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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.