Home / 21,383.33-29,507.80-11,822.66

Finding the Fourth Proportional to 21,383.33, 29,507.80 and 11,822.66

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Solution

The fourth proportional to 21,383.33, 29,507.80 and 11,822.66 is: 16,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,383.33 : 29,507.80 = 11,822.66 : x
  2. Step 2: Convert to fraction form
    21,383.33/29,507.80 = 11,822.66/x
  3. Step 3: Cross multiply
    21,383.33x = 29,507.80 × 11,822.66
  4. Step 4: Simplify right side
    21,383.33x = 348,860,642.47
  5. Step 5: Solve for x
    x = 348,860,642.47/21,383.33
  6. Step 6: Final answer
    x = 16,314.61

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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.