Home / 20,222.76-30,313.50-12,832.68

Finding the Fourth Proportional to 20,222.76, 30,313.50 and 12,832.68

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Solution

The fourth proportional to 20,222.76, 30,313.50 and 12,832.68 is: 19,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.76 : 30,313.50 = 12,832.68 : x
  2. Step 2: Convert to fraction form
    20,222.76/30,313.50 = 12,832.68/x
  3. Step 3: Cross multiply
    20,222.76x = 30,313.50 × 12,832.68
  4. Step 4: Simplify right side
    20,222.76x = 389,003,445.18
  5. Step 5: Solve for x
    x = 389,003,445.18/20,222.76
  6. Step 6: Final answer
    x = 19,235.92

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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.