Home / 21,015.22-29,042.82-17,232.52

Finding the Fourth Proportional to 21,015.22, 29,042.82 and 17,232.52

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Solution

The fourth proportional to 21,015.22, 29,042.82 and 17,232.52 is: 23,815.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.22 : 29,042.82 = 17,232.52 : x
  2. Step 2: Convert to fraction form
    21,015.22/29,042.82 = 17,232.52/x
  3. Step 3: Cross multiply
    21,015.22x = 29,042.82 × 17,232.52
  4. Step 4: Simplify right side
    21,015.22x = 500,480,976.51
  5. Step 5: Solve for x
    x = 500,480,976.51/21,015.22
  6. Step 6: Final answer
    x = 23,815.17

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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.