Home / 27,912-38,514.24-15,975.84

Finding the Fourth Proportional to 27,912, 38,514.24 and 15,975.84

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Solution

The fourth proportional to 27,912, 38,514.24 and 15,975.84 is: 22,044.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912 : 38,514.24 = 15,975.84 : x
  2. Step 2: Convert to fraction form
    27,912/38,514.24 = 15,975.84/x
  3. Step 3: Cross multiply
    27,912x = 38,514.24 × 15,975.84
  4. Step 4: Simplify right side
    27,912x = 615,297,335.96
  5. Step 5: Solve for x
    x = 615,297,335.96/27,912
  6. Step 6: Final answer
    x = 22,044.19

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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.