Home / 29,943.80-41,320.64-16,515.20

Finding the Fourth Proportional to 29,943.80, 41,320.64 and 16,515.20

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Solution

The fourth proportional to 29,943.80, 41,320.64 and 16,515.20 is: 22,789.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,943.80 : 41,320.64 = 16,515.20 : x
  2. Step 2: Convert to fraction form
    29,943.80/41,320.64 = 16,515.20/x
  3. Step 3: Cross multiply
    29,943.80x = 41,320.64 × 16,515.20
  4. Step 4: Simplify right side
    29,943.80x = 682,418,633.73
  5. Step 5: Solve for x
    x = 682,418,633.73/29,943.80
  6. Step 6: Final answer
    x = 22,789.98

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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.