Home / 20,924.75-28,876.36-11,493.52

Finding the Fourth Proportional to 20,924.75, 28,876.36 and 11,493.52

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Solution

The fourth proportional to 20,924.75, 28,876.36 and 11,493.52 is: 15,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.75 : 28,876.36 = 11,493.52 : x
  2. Step 2: Convert to fraction form
    20,924.75/28,876.36 = 11,493.52/x
  3. Step 3: Cross multiply
    20,924.75x = 28,876.36 × 11,493.52
  4. Step 4: Simplify right side
    20,924.75x = 331,891,021.19
  5. Step 5: Solve for x
    x = 331,891,021.19/20,924.75
  6. Step 6: Final answer
    x = 15,861.17

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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.