Home / 27,921.84-38,519-16,591.68

Finding the Fourth Proportional to 27,921.84, 38,519 and 16,591.68

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Solution

The fourth proportional to 27,921.84, 38,519 and 16,591.68 is: 22,888.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.84 : 38,519 = 16,591.68 : x
  2. Step 2: Convert to fraction form
    27,921.84/38,519 = 16,591.68/x
  3. Step 3: Cross multiply
    27,921.84x = 38,519 × 16,591.68
  4. Step 4: Simplify right side
    27,921.84x = 639,094,921.92
  5. Step 5: Solve for x
    x = 639,094,921.92/27,921.84
  6. Step 6: Final answer
    x = 22,888.71

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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.