Home / 21,163.40-29,199.58-16,673.21

Finding the Fourth Proportional to 21,163.40, 29,199.58 and 16,673.21

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Solution

The fourth proportional to 21,163.40, 29,199.58 and 16,673.21 is: 23,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.40 : 29,199.58 = 16,673.21 : x
  2. Step 2: Convert to fraction form
    21,163.40/29,199.58 = 16,673.21/x
  3. Step 3: Cross multiply
    21,163.40x = 29,199.58 × 16,673.21
  4. Step 4: Simplify right side
    21,163.40x = 486,850,656.31
  5. Step 5: Solve for x
    x = 486,850,656.31/21,163.40
  6. Step 6: Final answer
    x = 23,004.37

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1.5x scale

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.