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Finding the Fourth Proportional to 21,691.62, 32,525.10 and 8,536.86

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Solution

The fourth proportional to 21,691.62, 32,525.10 and 8,536.86 is: 12,800.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691.62 : 32,525.10 = 8,536.86 : x
  2. Step 2: Convert to fraction form
    21,691.62/32,525.10 = 8,536.86/x
  3. Step 3: Cross multiply
    21,691.62x = 32,525.10 × 8,536.86
  4. Step 4: Simplify right side
    21,691.62x = 277,662,225.19
  5. Step 5: Solve for x
    x = 277,662,225.19/21,691.62
  6. Step 6: Final answer
    x = 12,800.44

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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.