Home / 21,326.06-29,431.63-11,767.84

Finding the Fourth Proportional to 21,326.06, 29,431.63 and 11,767.84

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Solution

The fourth proportional to 21,326.06, 29,431.63 and 11,767.84 is: 16,240.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.06 : 29,431.63 = 11,767.84 : x
  2. Step 2: Convert to fraction form
    21,326.06/29,431.63 = 11,767.84/x
  3. Step 3: Cross multiply
    21,326.06x = 29,431.63 × 11,767.84
  4. Step 4: Simplify right side
    21,326.06x = 346,346,703.59
  5. Step 5: Solve for x
    x = 346,346,703.59/21,326.06
  6. Step 6: Final answer
    x = 16,240.54

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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.