Home / 20,083.57-30,133.61-8,833.12

Finding the Fourth Proportional to 20,083.57, 30,133.61 and 8,833.12

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Solution

The fourth proportional to 20,083.57, 30,133.61 and 8,833.12 is: 13,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.57 : 30,133.61 = 8,833.12 : x
  2. Step 2: Convert to fraction form
    20,083.57/30,133.61 = 8,833.12/x
  3. Step 3: Cross multiply
    20,083.57x = 30,133.61 × 8,833.12
  4. Step 4: Simplify right side
    20,083.57x = 266,173,706.79
  5. Step 5: Solve for x
    x = 266,173,706.79/20,083.57
  6. Step 6: Final answer
    x = 13,253.31

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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.