Home / 21,617.82-29,832.90-13,234.32

Finding the Fourth Proportional to 21,617.82, 29,832.90 and 13,234.32

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Solution

The fourth proportional to 21,617.82, 29,832.90 and 13,234.32 is: 18,263.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.82 : 29,832.90 = 13,234.32 : x
  2. Step 2: Convert to fraction form
    21,617.82/29,832.90 = 13,234.32/x
  3. Step 3: Cross multiply
    21,617.82x = 29,832.90 × 13,234.32
  4. Step 4: Simplify right side
    21,617.82x = 394,818,145.13
  5. Step 5: Solve for x
    x = 394,818,145.13/21,617.82
  6. Step 6: Final answer
    x = 18,263.55

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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.