Home / 28,766.84-43,155.18-13,185.80

Finding the Fourth Proportional to 28,766.84, 43,155.18 and 13,185.80

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Solution

The fourth proportional to 28,766.84, 43,155.18 and 13,185.80 is: 19,780.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,766.84 : 43,155.18 = 13,185.80 : x
  2. Step 2: Convert to fraction form
    28,766.84/43,155.18 = 13,185.80/x
  3. Step 3: Cross multiply
    28,766.84x = 43,155.18 × 13,185.80
  4. Step 4: Simplify right side
    28,766.84x = 569,035,572.44
  5. Step 5: Solve for x
    x = 569,035,572.44/28,766.84
  6. Step 6: Final answer
    x = 19,780.96

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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.