Home / 21,062.32-29,067.53-12,112.63

Finding the Fourth Proportional to 21,062.32, 29,067.53 and 12,112.63

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Solution

The fourth proportional to 21,062.32, 29,067.53 and 12,112.63 is: 16,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.32 : 29,067.53 = 12,112.63 : x
  2. Step 2: Convert to fraction form
    21,062.32/29,067.53 = 12,112.63/x
  3. Step 3: Cross multiply
    21,062.32x = 29,067.53 × 12,112.63
  4. Step 4: Simplify right side
    21,062.32x = 352,084,235.90
  5. Step 5: Solve for x
    x = 352,084,235.90/21,062.32
  6. Step 6: Final answer
    x = 16,716.31

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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.