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Finding the Fourth Proportional to 21,806.92, 32,722.20 and 16,886.20

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Solution

The fourth proportional to 21,806.92, 32,722.20 and 16,886.20 is: 25,338.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,806.92 : 32,722.20 = 16,886.20 : x
  2. Step 2: Convert to fraction form
    21,806.92/32,722.20 = 16,886.20/x
  3. Step 3: Cross multiply
    21,806.92x = 32,722.20 × 16,886.20
  4. Step 4: Simplify right side
    21,806.92x = 552,553,613.64
  5. Step 5: Solve for x
    x = 552,553,613.64/21,806.92
  6. Step 6: Final answer
    x = 25,338.45

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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.