Home / 20,179.35-30,266.82-5,389.56

Finding the Fourth Proportional to 20,179.35, 30,266.82 and 5,389.56

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Solution

The fourth proportional to 20,179.35, 30,266.82 and 5,389.56 is: 8,083.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179.35 : 30,266.82 = 5,389.56 : x
  2. Step 2: Convert to fraction form
    20,179.35/30,266.82 = 5,389.56/x
  3. Step 3: Cross multiply
    20,179.35x = 30,266.82 × 5,389.56
  4. Step 4: Simplify right side
    20,179.35x = 163,124,842.40
  5. Step 5: Solve for x
    x = 163,124,842.40/20,179.35
  6. Step 6: Final answer
    x = 8,083.75

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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.