Home / 21,368.97-29,489.22-11,937.51

Finding the Fourth Proportional to 21,368.97, 29,489.22 and 11,937.51

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Solution

The fourth proportional to 21,368.97, 29,489.22 and 11,937.51 is: 16,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.97 : 29,489.22 = 11,937.51 : x
  2. Step 2: Convert to fraction form
    21,368.97/29,489.22 = 11,937.51/x
  3. Step 3: Cross multiply
    21,368.97x = 29,489.22 × 11,937.51
  4. Step 4: Simplify right side
    21,368.97x = 352,027,858.64
  5. Step 5: Solve for x
    x = 352,027,858.64/21,368.97
  6. Step 6: Final answer
    x = 16,473.79

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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.