Home / 20,207.83-30,313.92-7,738.41

Finding the Fourth Proportional to 20,207.83, 30,313.92 and 7,738.41

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Solution

The fourth proportional to 20,207.83, 30,313.92 and 7,738.41 is: 11,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.83 : 30,313.92 = 7,738.41 : x
  2. Step 2: Convert to fraction form
    20,207.83/30,313.92 = 7,738.41/x
  3. Step 3: Cross multiply
    20,207.83x = 30,313.92 × 7,738.41
  4. Step 4: Simplify right side
    20,207.83x = 234,581,577.34
  5. Step 5: Solve for x
    x = 234,581,577.34/20,207.83
  6. Step 6: Final answer
    x = 11,608.45

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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.