Home / 20,960.92-28,927.02-11,530

Finding the Fourth Proportional to 20,960.92, 28,927.02 and 11,530

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Solution

The fourth proportional to 20,960.92, 28,927.02 and 11,530 is: 15,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.92 : 28,927.02 = 11,530 : x
  2. Step 2: Convert to fraction form
    20,960.92/28,927.02 = 11,530/x
  3. Step 3: Cross multiply
    20,960.92x = 28,927.02 × 11,530
  4. Step 4: Simplify right side
    20,960.92x = 333,528,540.60
  5. Step 5: Solve for x
    x = 333,528,540.60/20,960.92
  6. Step 6: Final answer
    x = 15,911.92

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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.