Home / 28,084.67-42,105.93-16,989.08

Finding the Fourth Proportional to 28,084.67, 42,105.93 and 16,989.08

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Solution

The fourth proportional to 28,084.67, 42,105.93 and 16,989.08 is: 25,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.67 : 42,105.93 = 16,989.08 : x
  2. Step 2: Convert to fraction form
    28,084.67/42,105.93 = 16,989.08/x
  3. Step 3: Cross multiply
    28,084.67x = 42,105.93 × 16,989.08
  4. Step 4: Simplify right side
    28,084.67x = 715,341,013.24
  5. Step 5: Solve for x
    x = 715,341,013.24/28,084.67
  6. Step 6: Final answer
    x = 25,470.87

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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.