Home / 20,220.49-30,324.88-6,893.18

Finding the Fourth Proportional to 20,220.49, 30,324.88 and 6,893.18

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Solution

The fourth proportional to 20,220.49, 30,324.88 and 6,893.18 is: 10,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,220.49 : 30,324.88 = 6,893.18 : x
  2. Step 2: Convert to fraction form
    20,220.49/30,324.88 = 6,893.18/x
  3. Step 3: Cross multiply
    20,220.49x = 30,324.88 × 6,893.18
  4. Step 4: Simplify right side
    20,220.49x = 209,034,856.32
  5. Step 5: Solve for x
    x = 209,034,856.32/20,220.49
  6. Step 6: Final answer
    x = 10,337.77

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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.