Home / 21,022.20-31,475.70-16,414.20

Finding the Fourth Proportional to 21,022.20, 31,475.70 and 16,414.20

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Solution

The fourth proportional to 21,022.20, 31,475.70 and 16,414.20 is: 24,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.20 : 31,475.70 = 16,414.20 : x
  2. Step 2: Convert to fraction form
    21,022.20/31,475.70 = 16,414.20/x
  3. Step 3: Cross multiply
    21,022.20x = 31,475.70 × 16,414.20
  4. Step 4: Simplify right side
    21,022.20x = 516,648,434.94
  5. Step 5: Solve for x
    x = 516,648,434.94/21,022.20
  6. Step 6: Final answer
    x = 24,576.33

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1.5x scale

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.