Home / 27,908.36-38,515.68-15,975.44

Finding the Fourth Proportional to 27,908.36, 38,515.68 and 15,975.44

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Solution

The fourth proportional to 27,908.36, 38,515.68 and 15,975.44 is: 22,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.36 : 38,515.68 = 15,975.44 : x
  2. Step 2: Convert to fraction form
    27,908.36/38,515.68 = 15,975.44/x
  3. Step 3: Cross multiply
    27,908.36x = 38,515.68 × 15,975.44
  4. Step 4: Simplify right side
    27,908.36x = 615,304,934.90
  5. Step 5: Solve for x
    x = 615,304,934.90/27,908.36
  6. Step 6: Final answer
    x = 22,047.33

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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.