Home / 20,038.14-30,057.48-18,820.44

Finding the Fourth Proportional to 20,038.14, 30,057.48 and 18,820.44

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Solution

The fourth proportional to 20,038.14, 30,057.48 and 18,820.44 is: 28,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.14 : 30,057.48 = 18,820.44 : x
  2. Step 2: Convert to fraction form
    20,038.14/30,057.48 = 18,820.44/x
  3. Step 3: Cross multiply
    20,038.14x = 30,057.48 × 18,820.44
  4. Step 4: Simplify right side
    20,038.14x = 565,694,998.89
  5. Step 5: Solve for x
    x = 565,694,998.89/20,038.14
  6. Step 6: Final answer
    x = 28,230.91

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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.