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Finding the Fourth Proportional to 21,644.08, 32,479.08 and 7,794.16

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Solution

The fourth proportional to 21,644.08, 32,479.08 and 7,794.16 is: 11,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.08 : 32,479.08 = 7,794.16 : x
  2. Step 2: Convert to fraction form
    21,644.08/32,479.08 = 7,794.16/x
  3. Step 3: Cross multiply
    21,644.08x = 32,479.08 × 7,794.16
  4. Step 4: Simplify right side
    21,644.08x = 253,147,146.17
  5. Step 5: Solve for x
    x = 253,147,146.17/21,644.08
  6. Step 6: Final answer
    x = 11,695.91

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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.