Home / 41,979.75-57,913.32-28,363.40

Finding the Fourth Proportional to 41,979.75, 57,913.32 and 28,363.40

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Solution

The fourth proportional to 41,979.75, 57,913.32 and 28,363.40 is: 39,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979.75 : 57,913.32 = 28,363.40 : x
  2. Step 2: Convert to fraction form
    41,979.75/57,913.32 = 28,363.40/x
  3. Step 3: Cross multiply
    41,979.75x = 57,913.32 × 28,363.40
  4. Step 4: Simplify right side
    41,979.75x = 1,642,618,518.67
  5. Step 5: Solve for x
    x = 1,642,618,518.67/41,979.75
  6. Step 6: Final answer
    x = 39,128.83

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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.