Home / 27,997.95-38,636.84-15,422.43

Finding the Fourth Proportional to 27,997.95, 38,636.84 and 15,422.43

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Solution

The fourth proportional to 27,997.95, 38,636.84 and 15,422.43 is: 21,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.95 : 38,636.84 = 15,422.43 : x
  2. Step 2: Convert to fraction form
    27,997.95/38,636.84 = 15,422.43/x
  3. Step 3: Cross multiply
    27,997.95x = 38,636.84 × 15,422.43
  4. Step 4: Simplify right side
    27,997.95x = 595,873,883.21
  5. Step 5: Solve for x
    x = 595,873,883.21/27,997.95
  6. Step 6: Final answer
    x = 21,282.77

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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.