Home / 21,643.19-32,468.21-9,163.29

Finding the Fourth Proportional to 21,643.19, 32,468.21 and 9,163.29

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Solution

The fourth proportional to 21,643.19, 32,468.21 and 9,163.29 is: 13,746.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.19 : 32,468.21 = 9,163.29 : x
  2. Step 2: Convert to fraction form
    21,643.19/32,468.21 = 9,163.29/x
  3. Step 3: Cross multiply
    21,643.19x = 32,468.21 × 9,163.29
  4. Step 4: Simplify right side
    21,643.19x = 297,515,578.19
  5. Step 5: Solve for x
    x = 297,515,578.19/21,643.19
  6. Step 6: Final answer
    x = 13,746.38

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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.