Home / 21,287.12-29,360.63-14,104.04

Finding the Fourth Proportional to 21,287.12, 29,360.63 and 14,104.04

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Solution

The fourth proportional to 21,287.12, 29,360.63 and 14,104.04 is: 19,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,287.12 : 29,360.63 = 14,104.04 : x
  2. Step 2: Convert to fraction form
    21,287.12/29,360.63 = 14,104.04/x
  3. Step 3: Cross multiply
    21,287.12x = 29,360.63 × 14,104.04
  4. Step 4: Simplify right side
    21,287.12x = 414,103,429.43
  5. Step 5: Solve for x
    x = 414,103,429.43/21,287.12
  6. Step 6: Final answer
    x = 19,453.24

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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.