Home / 27,876.25-38,469.36-15,301

Finding the Fourth Proportional to 27,876.25, 38,469.36 and 15,301

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Solution

The fourth proportional to 27,876.25, 38,469.36 and 15,301 is: 21,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,876.25 : 38,469.36 = 15,301 : x
  2. Step 2: Convert to fraction form
    27,876.25/38,469.36 = 15,301/x
  3. Step 3: Cross multiply
    27,876.25x = 38,469.36 × 15,301
  4. Step 4: Simplify right side
    27,876.25x = 588,619,677.36
  5. Step 5: Solve for x
    x = 588,619,677.36/27,876.25
  6. Step 6: Final answer
    x = 21,115.45

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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.