Home / 20,092.92-27,728.28-11,140.56

Finding the Fourth Proportional to 20,092.92, 27,728.28 and 11,140.56

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Solution

The fourth proportional to 20,092.92, 27,728.28 and 11,140.56 is: 15,374.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.92 : 27,728.28 = 11,140.56 : x
  2. Step 2: Convert to fraction form
    20,092.92/27,728.28 = 11,140.56/x
  3. Step 3: Cross multiply
    20,092.92x = 27,728.28 × 11,140.56
  4. Step 4: Simplify right side
    20,092.92x = 308,908,567.04
  5. Step 5: Solve for x
    x = 308,908,567.04/20,092.92
  6. Step 6: Final answer
    x = 15,374.00

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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.