Home / 19,270.11-28,902.15-6,120.75

Finding the Fourth Proportional to 19,270.11, 28,902.15 and 6,120.75

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Solution

The fourth proportional to 19,270.11, 28,902.15 and 6,120.75 is: 9,180.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.11 : 28,902.15 = 6,120.75 : x
  2. Step 2: Convert to fraction form
    19,270.11/28,902.15 = 6,120.75/x
  3. Step 3: Cross multiply
    19,270.11x = 28,902.15 × 6,120.75
  4. Step 4: Simplify right side
    19,270.11x = 176,902,834.61
  5. Step 5: Solve for x
    x = 176,902,834.61/19,270.11
  6. Step 6: Final answer
    x = 9,180.17

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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.