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Finding the Fourth Proportional to 22,330, 30,815.52 and 13,951.36

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Solution

The fourth proportional to 22,330, 30,815.52 and 13,951.36 is: 19,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,330 : 30,815.52 = 13,951.36 : x
  2. Step 2: Convert to fraction form
    22,330/30,815.52 = 13,951.36/x
  3. Step 3: Cross multiply
    22,330x = 30,815.52 × 13,951.36
  4. Step 4: Simplify right side
    22,330x = 429,918,413.11
  5. Step 5: Solve for x
    x = 429,918,413.11/22,330
  6. Step 6: Final answer
    x = 19,252.95

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1.5x scale

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.