Home / 27,618.16-38,111.76-15,042.88

Finding the Fourth Proportional to 27,618.16, 38,111.76 and 15,042.88

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Solution

The fourth proportional to 27,618.16, 38,111.76 and 15,042.88 is: 20,758.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.16 : 38,111.76 = 15,042.88 : x
  2. Step 2: Convert to fraction form
    27,618.16/38,111.76 = 15,042.88/x
  3. Step 3: Cross multiply
    27,618.16x = 38,111.76 × 15,042.88
  4. Step 4: Simplify right side
    27,618.16x = 573,310,632.27
  5. Step 5: Solve for x
    x = 573,310,632.27/27,618.16
  6. Step 6: Final answer
    x = 20,758.47

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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.