Home / 27,974.28-38,595.81-15,872.76

Finding the Fourth Proportional to 27,974.28, 38,595.81 and 15,872.76

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Solution

The fourth proportional to 27,974.28, 38,595.81 and 15,872.76 is: 21,899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,974.28 : 38,595.81 = 15,872.76 : x
  2. Step 2: Convert to fraction form
    27,974.28/38,595.81 = 15,872.76/x
  3. Step 3: Cross multiply
    27,974.28x = 38,595.81 × 15,872.76
  4. Step 4: Simplify right side
    27,974.28x = 612,622,029.14
  5. Step 5: Solve for x
    x = 612,622,029.14/27,974.28
  6. Step 6: Final answer
    x = 21,899.47

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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.