Home / 21,588.96-29,791.08-12,635.22

Finding the Fourth Proportional to 21,588.96, 29,791.08 and 12,635.22

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Solution

The fourth proportional to 21,588.96, 29,791.08 and 12,635.22 is: 17,435.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,588.96 : 29,791.08 = 12,635.22 : x
  2. Step 2: Convert to fraction form
    21,588.96/29,791.08 = 12,635.22/x
  3. Step 3: Cross multiply
    21,588.96x = 29,791.08 × 12,635.22
  4. Step 4: Simplify right side
    21,588.96x = 376,416,849.84
  5. Step 5: Solve for x
    x = 376,416,849.84/21,588.96
  6. Step 6: Final answer
    x = 17,435.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.