Home / 40,992.09-61,491.78-21,265.35

Finding the Fourth Proportional to 40,992.09, 61,491.78 and 21,265.35

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Solution

The fourth proportional to 40,992.09, 61,491.78 and 21,265.35 is: 31,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,992.09 : 61,491.78 = 21,265.35 : x
  2. Step 2: Convert to fraction form
    40,992.09/61,491.78 = 21,265.35/x
  3. Step 3: Cross multiply
    40,992.09x = 61,491.78 × 21,265.35
  4. Step 4: Simplify right side
    40,992.09x = 1,307,644,223.82
  5. Step 5: Solve for x
    x = 1,307,644,223.82/40,992.09
  6. Step 6: Final answer
    x = 31,899.92

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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.