Home / 27,877.62-38,469.96-15,302.64

Finding the Fourth Proportional to 27,877.62, 38,469.96 and 15,302.64

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Solution

The fourth proportional to 27,877.62, 38,469.96 and 15,302.64 is: 21,117.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,877.62 : 38,469.96 = 15,302.64 : x
  2. Step 2: Convert to fraction form
    27,877.62/38,469.96 = 15,302.64/x
  3. Step 3: Cross multiply
    27,877.62x = 38,469.96 × 15,302.64
  4. Step 4: Simplify right side
    27,877.62x = 588,691,948.69
  5. Step 5: Solve for x
    x = 588,691,948.69/27,877.62
  6. Step 6: Final answer
    x = 21,117.01

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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.