Home / 27,963.28-38,588.52-15,387.76

Finding the Fourth Proportional to 27,963.28, 38,588.52 and 15,387.76

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Solution

The fourth proportional to 27,963.28, 38,588.52 and 15,387.76 is: 21,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.28 : 38,588.52 = 15,387.76 : x
  2. Step 2: Convert to fraction form
    27,963.28/38,588.52 = 15,387.76/x
  3. Step 3: Cross multiply
    27,963.28x = 38,588.52 × 15,387.76
  4. Step 4: Simplify right side
    27,963.28x = 593,790,884.52
  5. Step 5: Solve for x
    x = 593,790,884.52/27,963.28
  6. Step 6: Final answer
    x = 21,234.67

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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.