Home / 27,867.68-38,460.09-15,928.74

Finding the Fourth Proportional to 27,867.68, 38,460.09 and 15,928.74

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Solution

The fourth proportional to 27,867.68, 38,460.09 and 15,928.74 is: 21,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,867.68 : 38,460.09 = 15,928.74 : x
  2. Step 2: Convert to fraction form
    27,867.68/38,460.09 = 15,928.74/x
  3. Step 3: Cross multiply
    27,867.68x = 38,460.09 × 15,928.74
  4. Step 4: Simplify right side
    27,867.68x = 612,620,773.99
  5. Step 5: Solve for x
    x = 612,620,773.99/27,867.68
  6. Step 6: Final answer
    x = 21,983.20

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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.