Home / 20,241.90-30,326.40-19,022.04

Finding the Fourth Proportional to 20,241.90, 30,326.40 and 19,022.04

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Solution

The fourth proportional to 20,241.90, 30,326.40 and 19,022.04 is: 28,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,241.90 : 30,326.40 = 19,022.04 : x
  2. Step 2: Convert to fraction form
    20,241.90/30,326.40 = 19,022.04/x
  3. Step 3: Cross multiply
    20,241.90x = 30,326.40 × 19,022.04
  4. Step 4: Simplify right side
    20,241.90x = 576,869,993.86
  5. Step 5: Solve for x
    x = 576,869,993.86/20,241.90
  6. Step 6: Final answer
    x = 28,498.81

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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.