Home / 40,981.26-61,511.94-21,006.66

Finding the Fourth Proportional to 40,981.26, 61,511.94 and 21,006.66

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Solution

The fourth proportional to 40,981.26, 61,511.94 and 21,006.66 is: 31,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,981.26 : 61,511.94 = 21,006.66 : x
  2. Step 2: Convert to fraction form
    40,981.26/61,511.94 = 21,006.66/x
  3. Step 3: Cross multiply
    40,981.26x = 61,511.94 × 21,006.66
  4. Step 4: Simplify right side
    40,981.26x = 1,292,160,409.52
  5. Step 5: Solve for x
    x = 1,292,160,409.52/40,981.26
  6. Step 6: Final answer
    x = 31,530.52

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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.