Home / 20,844.18-28,764.27-11,412.54

Finding the Fourth Proportional to 20,844.18, 28,764.27 and 11,412.54

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Solution

The fourth proportional to 20,844.18, 28,764.27 and 11,412.54 is: 15,748.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.18 : 28,764.27 = 11,412.54 : x
  2. Step 2: Convert to fraction form
    20,844.18/28,764.27 = 11,412.54/x
  3. Step 3: Cross multiply
    20,844.18x = 28,764.27 × 11,412.54
  4. Step 4: Simplify right side
    20,844.18x = 328,273,381.95
  5. Step 5: Solve for x
    x = 328,273,381.95/20,844.18
  6. Step 6: Final answer
    x = 15,748.92

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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.