Home / 22,293.11-30,765.86-12,861.68

Finding the Fourth Proportional to 22,293.11, 30,765.86 and 12,861.68

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Solution

The fourth proportional to 22,293.11, 30,765.86 and 12,861.68 is: 17,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,293.11 : 30,765.86 = 12,861.68 : x
  2. Step 2: Convert to fraction form
    22,293.11/30,765.86 = 12,861.68/x
  3. Step 3: Cross multiply
    22,293.11x = 30,765.86 × 12,861.68
  4. Step 4: Simplify right side
    22,293.11x = 395,700,428.11
  5. Step 5: Solve for x
    x = 395,700,428.11/22,293.11
  6. Step 6: Final answer
    x = 17,749.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.