Home / 40,920.21-61,382.91-12,841.37

Finding the Fourth Proportional to 40,920.21, 61,382.91 and 12,841.37

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Solution

The fourth proportional to 40,920.21, 61,382.91 and 12,841.37 is: 19,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,920.21 : 61,382.91 = 12,841.37 : x
  2. Step 2: Convert to fraction form
    40,920.21/61,382.91 = 12,841.37/x
  3. Step 3: Cross multiply
    40,920.21x = 61,382.91 × 12,841.37
  4. Step 4: Simplify right side
    40,920.21x = 788,240,824.48
  5. Step 5: Solve for x
    x = 788,240,824.48/40,920.21
  6. Step 6: Final answer
    x = 19,262.87

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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.