Home / 28,015.38-38,660.81-16,081.25

Finding the Fourth Proportional to 28,015.38, 38,660.81 and 16,081.25

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Solution

The fourth proportional to 28,015.38, 38,660.81 and 16,081.25 is: 22,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.38 : 38,660.81 = 16,081.25 : x
  2. Step 2: Convert to fraction form
    28,015.38/38,660.81 = 16,081.25/x
  3. Step 3: Cross multiply
    28,015.38x = 38,660.81 × 16,081.25
  4. Step 4: Simplify right side
    28,015.38x = 621,713,877.10
  5. Step 5: Solve for x
    x = 621,713,877.10/28,015.38
  6. Step 6: Final answer
    x = 22,191.88

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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.