Home / 28,073.10-38,747.40-18,514.72

Finding the Fourth Proportional to 28,073.10, 38,747.40 and 18,514.72

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Solution

The fourth proportional to 28,073.10, 38,747.40 and 18,514.72 is: 25,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073.10 : 38,747.40 = 18,514.72 : x
  2. Step 2: Convert to fraction form
    28,073.10/38,747.40 = 18,514.72/x
  3. Step 3: Cross multiply
    28,073.10x = 38,747.40 × 18,514.72
  4. Step 4: Simplify right side
    28,073.10x = 717,397,261.73
  5. Step 5: Solve for x
    x = 717,397,261.73/28,073.10
  6. Step 6: Final answer
    x = 25,554.61

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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.