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Finding the Fourth Proportional to 21,951.57, 32,926.94 and 8,806.89

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Solution

The fourth proportional to 21,951.57, 32,926.94 and 8,806.89 is: 13,210.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951.57 : 32,926.94 = 8,806.89 : x
  2. Step 2: Convert to fraction form
    21,951.57/32,926.94 = 8,806.89/x
  3. Step 3: Cross multiply
    21,951.57x = 32,926.94 × 8,806.89
  4. Step 4: Simplify right side
    21,951.57x = 289,983,894.58
  5. Step 5: Solve for x
    x = 289,983,894.58/21,951.57
  6. Step 6: Final answer
    x = 13,210.17

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1.5x scale

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.