Home / 20,843.18-28,764.29-11,411.94

Finding the Fourth Proportional to 20,843.18, 28,764.29 and 11,411.94

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Solution

The fourth proportional to 20,843.18, 28,764.29 and 11,411.94 is: 15,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,843.18 : 28,764.29 = 11,411.94 : x
  2. Step 2: Convert to fraction form
    20,843.18/28,764.29 = 11,411.94/x
  3. Step 3: Cross multiply
    20,843.18x = 28,764.29 × 11,411.94
  4. Step 4: Simplify right side
    20,843.18x = 328,256,351.62
  5. Step 5: Solve for x
    x = 328,256,351.62/20,843.18
  6. Step 6: Final answer
    x = 15,748.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.