Home / 20,243.17-27,935.61-11,291.25

Finding the Fourth Proportional to 20,243.17, 27,935.61 and 11,291.25

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Solution

The fourth proportional to 20,243.17, 27,935.61 and 11,291.25 is: 15,581.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.17 : 27,935.61 = 11,291.25 : x
  2. Step 2: Convert to fraction form
    20,243.17/27,935.61 = 11,291.25/x
  3. Step 3: Cross multiply
    20,243.17x = 27,935.61 × 11,291.25
  4. Step 4: Simplify right side
    20,243.17x = 315,427,956.41
  5. Step 5: Solve for x
    x = 315,427,956.41/20,243.17
  6. Step 6: Final answer
    x = 15,581.95

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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.