Home / 28,781.57-43,196.95-11,263.70

Finding the Fourth Proportional to 28,781.57, 43,196.95 and 11,263.70

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Solution

The fourth proportional to 28,781.57, 43,196.95 and 11,263.70 is: 16,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.57 : 43,196.95 = 11,263.70 : x
  2. Step 2: Convert to fraction form
    28,781.57/43,196.95 = 11,263.70/x
  3. Step 3: Cross multiply
    28,781.57x = 43,196.95 × 11,263.70
  4. Step 4: Simplify right side
    28,781.57x = 486,557,269.73
  5. Step 5: Solve for x
    x = 486,557,269.73/28,781.57
  6. Step 6: Final answer
    x = 16,905.17

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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.