Home / 28,084.73-42,106.03-16,989.14

Finding the Fourth Proportional to 28,084.73, 42,106.03 and 16,989.14

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Solution

The fourth proportional to 28,084.73, 42,106.03 and 16,989.14 is: 25,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.73 : 42,106.03 = 16,989.14 : x
  2. Step 2: Convert to fraction form
    28,084.73/42,106.03 = 16,989.14/x
  3. Step 3: Cross multiply
    28,084.73x = 42,106.03 × 16,989.14
  4. Step 4: Simplify right side
    28,084.73x = 715,345,301.31
  5. Step 5: Solve for x
    x = 715,345,301.31/28,084.73
  6. Step 6: Final answer
    x = 25,470.97

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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.