Home / 27,928.13-38,540.88-15,352.88

Finding the Fourth Proportional to 27,928.13, 38,540.88 and 15,352.88

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Solution

The fourth proportional to 27,928.13, 38,540.88 and 15,352.88 is: 21,187.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,928.13 : 38,540.88 = 15,352.88 : x
  2. Step 2: Convert to fraction form
    27,928.13/38,540.88 = 15,352.88/x
  3. Step 3: Cross multiply
    27,928.13x = 38,540.88 × 15,352.88
  4. Step 4: Simplify right side
    27,928.13x = 591,713,313.03
  5. Step 5: Solve for x
    x = 591,713,313.03/27,928.13
  6. Step 6: Final answer
    x = 21,187.00

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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.