Home / 20,229.21-30,123.43-20,008.13

Finding the Fourth Proportional to 20,229.21, 30,123.43 and 20,008.13

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Solution

The fourth proportional to 20,229.21, 30,123.43 and 20,008.13 is: 29,794.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.21 : 30,123.43 = 20,008.13 : x
  2. Step 2: Convert to fraction form
    20,229.21/30,123.43 = 20,008.13/x
  3. Step 3: Cross multiply
    20,229.21x = 30,123.43 × 20,008.13
  4. Step 4: Simplify right side
    20,229.21x = 602,713,302.85
  5. Step 5: Solve for x
    x = 602,713,302.85/20,229.21
  6. Step 6: Final answer
    x = 29,794.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.