Home / 20,266.13-27,966.71-11,313.38

Finding the Fourth Proportional to 20,266.13, 27,966.71 and 11,313.38

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Solution

The fourth proportional to 20,266.13, 27,966.71 and 11,313.38 is: 15,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.13 : 27,966.71 = 11,313.38 : x
  2. Step 2: Convert to fraction form
    20,266.13/27,966.71 = 11,313.38/x
  3. Step 3: Cross multiply
    20,266.13x = 27,966.71 × 11,313.38
  4. Step 4: Simplify right side
    20,266.13x = 316,397,906.03
  5. Step 5: Solve for x
    x = 316,397,906.03/20,266.13
  6. Step 6: Final answer
    x = 15,612.16

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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.