Home / 28,951.20-39,970.62-22,223.96

Finding the Fourth Proportional to 28,951.20, 39,970.62 and 22,223.96

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Solution

The fourth proportional to 28,951.20, 39,970.62 and 22,223.96 is: 30,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,951.20 : 39,970.62 = 22,223.96 : x
  2. Step 2: Convert to fraction form
    28,951.20/39,970.62 = 22,223.96/x
  3. Step 3: Cross multiply
    28,951.20x = 39,970.62 × 22,223.96
  4. Step 4: Simplify right side
    28,951.20x = 888,305,460.06
  5. Step 5: Solve for x
    x = 888,305,460.06/28,951.20
  6. Step 6: Final answer
    x = 30,682.85

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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.