Home / 20,927.91-28,881.92-11,496.57

Finding the Fourth Proportional to 20,927.91, 28,881.92 and 11,496.57

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Solution

The fourth proportional to 20,927.91, 28,881.92 and 11,496.57 is: 15,866.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.91 : 28,881.92 = 11,496.57 : x
  2. Step 2: Convert to fraction form
    20,927.91/28,881.92 = 11,496.57/x
  3. Step 3: Cross multiply
    20,927.91x = 28,881.92 × 11,496.57
  4. Step 4: Simplify right side
    20,927.91x = 332,043,015.01
  5. Step 5: Solve for x
    x = 332,043,015.01/20,927.91
  6. Step 6: Final answer
    x = 15,866.04

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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.