Home / 20,924.26-28,877.25-11,494.78

Finding the Fourth Proportional to 20,924.26, 28,877.25 and 11,494.78

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Solution

The fourth proportional to 20,924.26, 28,877.25 and 11,494.78 is: 15,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.26 : 28,877.25 = 11,494.78 : x
  2. Step 2: Convert to fraction form
    20,924.26/28,877.25 = 11,494.78/x
  3. Step 3: Cross multiply
    20,924.26x = 28,877.25 × 11,494.78
  4. Step 4: Simplify right side
    20,924.26x = 331,937,635.76
  5. Step 5: Solve for x
    x = 331,937,635.76/20,924.26
  6. Step 6: Final answer
    x = 15,863.77

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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.