Home / 20,616.85-30,966.70-20,035.47

Finding the Fourth Proportional to 20,616.85, 30,966.70 and 20,035.47

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Solution

The fourth proportional to 20,616.85, 30,966.70 and 20,035.47 is: 30,093.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.85 : 30,966.70 = 20,035.47 : x
  2. Step 2: Convert to fraction form
    20,616.85/30,966.70 = 20,035.47/x
  3. Step 3: Cross multiply
    20,616.85x = 30,966.70 × 20,035.47
  4. Step 4: Simplify right side
    20,616.85x = 620,432,388.85
  5. Step 5: Solve for x
    x = 620,432,388.85/20,616.85
  6. Step 6: Final answer
    x = 30,093.46

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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.