Home / 20,562.12-28,376.24-11,609.76

Finding the Fourth Proportional to 20,562.12, 28,376.24 and 11,609.76

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Solution

The fourth proportional to 20,562.12, 28,376.24 and 11,609.76 is: 16,021.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562.12 : 28,376.24 = 11,609.76 : x
  2. Step 2: Convert to fraction form
    20,562.12/28,376.24 = 11,609.76/x
  3. Step 3: Cross multiply
    20,562.12x = 28,376.24 × 11,609.76
  4. Step 4: Simplify right side
    20,562.12x = 329,441,278.05
  5. Step 5: Solve for x
    x = 329,441,278.05/20,562.12
  6. Step 6: Final answer
    x = 16,021.76

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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.