Home / 20,160.17-27,821.75-11,086.22

Finding the Fourth Proportional to 20,160.17, 27,821.75 and 11,086.22

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Solution

The fourth proportional to 20,160.17, 27,821.75 and 11,086.22 is: 15,299.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.17 : 27,821.75 = 11,086.22 : x
  2. Step 2: Convert to fraction form
    20,160.17/27,821.75 = 11,086.22/x
  3. Step 3: Cross multiply
    20,160.17x = 27,821.75 × 11,086.22
  4. Step 4: Simplify right side
    20,160.17x = 308,438,041.29
  5. Step 5: Solve for x
    x = 308,438,041.29/20,160.17
  6. Step 6: Final answer
    x = 15,299.38

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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.