Home / 20,177.71-27,844.82-11,225.02

Finding the Fourth Proportional to 20,177.71, 27,844.82 and 11,225.02

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Solution

The fourth proportional to 20,177.71, 27,844.82 and 11,225.02 is: 15,490.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.71 : 27,844.82 = 11,225.02 : x
  2. Step 2: Convert to fraction form
    20,177.71/27,844.82 = 11,225.02/x
  3. Step 3: Cross multiply
    20,177.71x = 27,844.82 × 11,225.02
  4. Step 4: Simplify right side
    20,177.71x = 312,558,689.46
  5. Step 5: Solve for x
    x = 312,558,689.46/20,177.71
  6. Step 6: Final answer
    x = 15,490.30

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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.