Home / 27,996.16-38,634.24-15,422.08

Finding the Fourth Proportional to 27,996.16, 38,634.24 and 15,422.08

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Solution

The fourth proportional to 27,996.16, 38,634.24 and 15,422.08 is: 21,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,996.16 : 38,634.24 = 15,422.08 : x
  2. Step 2: Convert to fraction form
    27,996.16/38,634.24 = 15,422.08/x
  3. Step 3: Cross multiply
    27,996.16x = 38,634.24 × 15,422.08
  4. Step 4: Simplify right side
    27,996.16x = 595,820,340.02
  5. Step 5: Solve for x
    x = 595,820,340.02/27,996.16
  6. Step 6: Final answer
    x = 21,282.22

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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.