Home / 28,013.92-38,653.52-16,081.12

Finding the Fourth Proportional to 28,013.92, 38,653.52 and 16,081.12

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Solution

The fourth proportional to 28,013.92, 38,653.52 and 16,081.12 is: 22,188.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.92 : 38,653.52 = 16,081.12 : x
  2. Step 2: Convert to fraction form
    28,013.92/38,653.52 = 16,081.12/x
  3. Step 3: Cross multiply
    28,013.92x = 38,653.52 × 16,081.12
  4. Step 4: Simplify right side
    28,013.92x = 621,591,893.54
  5. Step 5: Solve for x
    x = 621,591,893.54/28,013.92
  6. Step 6: Final answer
    x = 22,188.68

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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.