Home / 19,951.57-27,531.93-10,998.61

Finding the Fourth Proportional to 19,951.57, 27,531.93 and 10,998.61

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Solution

The fourth proportional to 19,951.57, 27,531.93 and 10,998.61 is: 15,177.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.57 : 27,531.93 = 10,998.61 : x
  2. Step 2: Convert to fraction form
    19,951.57/27,531.93 = 10,998.61/x
  3. Step 3: Cross multiply
    19,951.57x = 27,531.93 × 10,998.61
  4. Step 4: Simplify right side
    19,951.57x = 302,812,960.62
  5. Step 5: Solve for x
    x = 302,812,960.62/19,951.57
  6. Step 6: Final answer
    x = 15,177.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.