Home / 27,711.52-38,273.73-20,191.48

Finding the Fourth Proportional to 27,711.52, 38,273.73 and 20,191.48

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Solution

The fourth proportional to 27,711.52, 38,273.73 and 20,191.48 is: 27,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,711.52 : 38,273.73 = 20,191.48 : x
  2. Step 2: Convert to fraction form
    27,711.52/38,273.73 = 20,191.48/x
  3. Step 3: Cross multiply
    27,711.52x = 38,273.73 × 20,191.48
  4. Step 4: Simplify right side
    27,711.52x = 772,803,253.82
  5. Step 5: Solve for x
    x = 772,803,253.82/27,711.52
  6. Step 6: Final answer
    x = 27,887.44

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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.