Home / 21,066.64-31,593.24-8,586.64

Finding the Fourth Proportional to 21,066.64, 31,593.24 and 8,586.64

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Solution

The fourth proportional to 21,066.64, 31,593.24 and 8,586.64 is: 12,877.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.64 : 31,593.24 = 8,586.64 : x
  2. Step 2: Convert to fraction form
    21,066.64/31,593.24 = 8,586.64/x
  3. Step 3: Cross multiply
    21,066.64x = 31,593.24 × 8,586.64
  4. Step 4: Simplify right side
    21,066.64x = 271,279,778.31
  5. Step 5: Solve for x
    x = 271,279,778.31/21,066.64
  6. Step 6: Final answer
    x = 12,877.22

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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.