Home / 21,193.80-29,216.21-16,149.27

Finding the Fourth Proportional to 21,193.80, 29,216.21 and 16,149.27

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Solution

The fourth proportional to 21,193.80, 29,216.21 and 16,149.27 is: 22,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.80 : 29,216.21 = 16,149.27 : x
  2. Step 2: Convert to fraction form
    21,193.80/29,216.21 = 16,149.27/x
  3. Step 3: Cross multiply
    21,193.80x = 29,216.21 × 16,149.27
  4. Step 4: Simplify right side
    21,193.80x = 471,820,463.67
  5. Step 5: Solve for x
    x = 471,820,463.67/21,193.80
  6. Step 6: Final answer
    x = 22,262.19

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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.