Home / 27,908.12-38,512.68-15,972.32

Finding the Fourth Proportional to 27,908.12, 38,512.68 and 15,972.32

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Solution

The fourth proportional to 27,908.12, 38,512.68 and 15,972.32 is: 22,041.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.12 : 38,512.68 = 15,972.32 : x
  2. Step 2: Convert to fraction form
    27,908.12/38,512.68 = 15,972.32/x
  3. Step 3: Cross multiply
    27,908.12x = 38,512.68 × 15,972.32
  4. Step 4: Simplify right side
    27,908.12x = 615,136,849.02
  5. Step 5: Solve for x
    x = 615,136,849.02/27,908.12
  6. Step 6: Final answer
    x = 22,041.50

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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.