Home / 27,679.01-38,196.90-15,103.76

Finding the Fourth Proportional to 27,679.01, 38,196.90 and 15,103.76

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Solution

The fourth proportional to 27,679.01, 38,196.90 and 15,103.76 is: 20,843.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.01 : 38,196.90 = 15,103.76 : x
  2. Step 2: Convert to fraction form
    27,679.01/38,196.90 = 15,103.76/x
  3. Step 3: Cross multiply
    27,679.01x = 38,196.90 × 15,103.76
  4. Step 4: Simplify right side
    27,679.01x = 576,916,619.36
  5. Step 5: Solve for x
    x = 576,916,619.36/27,679.01
  6. Step 6: Final answer
    x = 20,843.11

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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.