Home / 21,344.00-32,012.99-13,422.36

Finding the Fourth Proportional to 21,344.00, 32,012.99 and 13,422.36

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Solution

The fourth proportional to 21,344.00, 32,012.99 and 13,422.36 is: 20,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.00 : 32,012.99 = 13,422.36 : x
  2. Step 2: Convert to fraction form
    21,344.00/32,012.99 = 13,422.36/x
  3. Step 3: Cross multiply
    21,344.00x = 32,012.99 × 13,422.36
  4. Step 4: Simplify right side
    21,344.00x = 429,690,030.55
  5. Step 5: Solve for x
    x = 429,690,030.55/21,344.00
  6. Step 6: Final answer
    x = 20,131.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.