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Finding the Fourth Proportional to 21,736.82, 32,613.44 and 7,696.28

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Solution

The fourth proportional to 21,736.82, 32,613.44 and 7,696.28 is: 11,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.82 : 32,613.44 = 7,696.28 : x
  2. Step 2: Convert to fraction form
    21,736.82/32,613.44 = 7,696.28/x
  3. Step 3: Cross multiply
    21,736.82x = 32,613.44 × 7,696.28
  4. Step 4: Simplify right side
    21,736.82x = 251,002,209.06
  5. Step 5: Solve for x
    x = 251,002,209.06/21,736.82
  6. Step 6: Final answer
    x = 11,547.33

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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.