Home / 21,733.11-29,990.65-13,347.99

Finding the Fourth Proportional to 21,733.11, 29,990.65 and 13,347.99

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Solution

The fourth proportional to 21,733.11, 29,990.65 and 13,347.99 is: 18,419.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,733.11 : 29,990.65 = 13,347.99 : x
  2. Step 2: Convert to fraction form
    21,733.11/29,990.65 = 13,347.99/x
  3. Step 3: Cross multiply
    21,733.11x = 29,990.65 × 13,347.99
  4. Step 4: Simplify right side
    21,733.11x = 400,314,896.29
  5. Step 5: Solve for x
    x = 400,314,896.29/21,733.11
  6. Step 6: Final answer
    x = 18,419.59

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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.