Home / 28,888.57-43,340.15-8,112.07

Finding the Fourth Proportional to 28,888.57, 43,340.15 and 8,112.07

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Solution

The fourth proportional to 28,888.57, 43,340.15 and 8,112.07 is: 12,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.57 : 43,340.15 = 8,112.07 : x
  2. Step 2: Convert to fraction form
    28,888.57/43,340.15 = 8,112.07/x
  3. Step 3: Cross multiply
    28,888.57x = 43,340.15 × 8,112.07
  4. Step 4: Simplify right side
    28,888.57x = 351,578,330.61
  5. Step 5: Solve for x
    x = 351,578,330.61/28,888.57
  6. Step 6: Final answer
    x = 12,170.15

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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.