Home / 27,893.15-38,493.17-15,146.78

Finding the Fourth Proportional to 27,893.15, 38,493.17 and 15,146.78

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Solution

The fourth proportional to 27,893.15, 38,493.17 and 15,146.78 is: 20,902.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.15 : 38,493.17 = 15,146.78 : x
  2. Step 2: Convert to fraction form
    27,893.15/38,493.17 = 15,146.78/x
  3. Step 3: Cross multiply
    27,893.15x = 38,493.17 × 15,146.78
  4. Step 4: Simplify right side
    27,893.15x = 583,047,309.29
  5. Step 5: Solve for x
    x = 583,047,309.29/27,893.15
  6. Step 6: Final answer
    x = 20,902.89

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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.