Home / 21,163.18-29,199.27-16,672.99

Finding the Fourth Proportional to 21,163.18, 29,199.27 and 16,672.99

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Solution

The fourth proportional to 21,163.18, 29,199.27 and 16,672.99 is: 23,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.18 : 29,199.27 = 16,672.99 : x
  2. Step 2: Convert to fraction form
    21,163.18/29,199.27 = 16,672.99/x
  3. Step 3: Cross multiply
    21,163.18x = 29,199.27 × 16,672.99
  4. Step 4: Simplify right side
    21,163.18x = 486,839,235.74
  5. Step 5: Solve for x
    x = 486,839,235.74/21,163.18
  6. Step 6: Final answer
    x = 23,004.07

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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.