Home / 20,057.68-30,089.31-8,368.21

Finding the Fourth Proportional to 20,057.68, 30,089.31 and 8,368.21

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Solution

The fourth proportional to 20,057.68, 30,089.31 and 8,368.21 is: 12,553.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.68 : 30,089.31 = 8,368.21 : x
  2. Step 2: Convert to fraction form
    20,057.68/30,089.31 = 8,368.21/x
  3. Step 3: Cross multiply
    20,057.68x = 30,089.31 × 8,368.21
  4. Step 4: Simplify right side
    20,057.68x = 251,793,664.84
  5. Step 5: Solve for x
    x = 251,793,664.84/20,057.68
  6. Step 6: Final answer
    x = 12,553.48

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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.