Home / 28,721.18-43,081.77-7,944.68

Finding the Fourth Proportional to 28,721.18, 43,081.77 and 7,944.68

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Solution

The fourth proportional to 28,721.18, 43,081.77 and 7,944.68 is: 11,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.18 : 43,081.77 = 7,944.68 : x
  2. Step 2: Convert to fraction form
    28,721.18/43,081.77 = 7,944.68/x
  3. Step 3: Cross multiply
    28,721.18x = 43,081.77 × 7,944.68
  4. Step 4: Simplify right side
    28,721.18x = 342,270,876.48
  5. Step 5: Solve for x
    x = 342,270,876.48/28,721.18
  6. Step 6: Final answer
    x = 11,917.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.