Home / 21,933.88-30,239.13-18,943.36

Finding the Fourth Proportional to 21,933.88, 30,239.13 and 18,943.36

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Solution

The fourth proportional to 21,933.88, 30,239.13 and 18,943.36 is: 26,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.88 : 30,239.13 = 18,943.36 : x
  2. Step 2: Convert to fraction form
    21,933.88/30,239.13 = 18,943.36/x
  3. Step 3: Cross multiply
    21,933.88x = 30,239.13 × 18,943.36
  4. Step 4: Simplify right side
    21,933.88x = 572,830,725.68
  5. Step 5: Solve for x
    x = 572,830,725.68/21,933.88
  6. Step 6: Final answer
    x = 26,116.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.