Home / 28,787.40-43,185.42-9,063.90

Finding the Fourth Proportional to 28,787.40, 43,185.42 and 9,063.90

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Solution

The fourth proportional to 28,787.40, 43,185.42 and 9,063.90 is: 13,597.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787.40 : 43,185.42 = 9,063.90 : x
  2. Step 2: Convert to fraction form
    28,787.40/43,185.42 = 9,063.90/x
  3. Step 3: Cross multiply
    28,787.40x = 43,185.42 × 9,063.90
  4. Step 4: Simplify right side
    28,787.40x = 391,428,328.34
  5. Step 5: Solve for x
    x = 391,428,328.34/28,787.40
  6. Step 6: Final answer
    x = 13,597.21

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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.