Home / 20,092.54-27,727.65-11,139.81

Finding the Fourth Proportional to 20,092.54, 27,727.65 and 11,139.81

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Solution

The fourth proportional to 20,092.54, 27,727.65 and 11,139.81 is: 15,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.54 : 27,727.65 = 11,139.81 : x
  2. Step 2: Convert to fraction form
    20,092.54/27,727.65 = 11,139.81/x
  3. Step 3: Cross multiply
    20,092.54x = 27,727.65 × 11,139.81
  4. Step 4: Simplify right side
    20,092.54x = 308,880,752.75
  5. Step 5: Solve for x
    x = 308,880,752.75/20,092.54
  6. Step 6: Final answer
    x = 15,372.91

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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.