Home / 20,924.84-28,876.20-11,493.44

Finding the Fourth Proportional to 20,924.84, 28,876.20 and 11,493.44

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Solution

The fourth proportional to 20,924.84, 28,876.20 and 11,493.44 is: 15,860.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.84 : 28,876.20 = 11,493.44 : x
  2. Step 2: Convert to fraction form
    20,924.84/28,876.20 = 11,493.44/x
  3. Step 3: Cross multiply
    20,924.84x = 28,876.20 × 11,493.44
  4. Step 4: Simplify right side
    20,924.84x = 331,886,872.13
  5. Step 5: Solve for x
    x = 331,886,872.13/20,924.84
  6. Step 6: Final answer
    x = 15,860.90

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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.