Home / 28,813.82-43,190.76-12,159.95

Finding the Fourth Proportional to 28,813.82, 43,190.76 and 12,159.95

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Solution

The fourth proportional to 28,813.82, 43,190.76 and 12,159.95 is: 18,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,813.82 : 43,190.76 = 12,159.95 : x
  2. Step 2: Convert to fraction form
    28,813.82/43,190.76 = 12,159.95/x
  3. Step 3: Cross multiply
    28,813.82x = 43,190.76 × 12,159.95
  4. Step 4: Simplify right side
    28,813.82x = 525,197,482.06
  5. Step 5: Solve for x
    x = 525,197,482.06/28,813.82
  6. Step 6: Final answer
    x = 18,227.28

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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.