Home / 20,446.24-28,210.80-11,491.96

Finding the Fourth Proportional to 20,446.24, 28,210.80 and 11,491.96

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Solution

The fourth proportional to 20,446.24, 28,210.80 and 11,491.96 is: 15,856.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.24 : 28,210.80 = 11,491.96 : x
  2. Step 2: Convert to fraction form
    20,446.24/28,210.80 = 11,491.96/x
  3. Step 3: Cross multiply
    20,446.24x = 28,210.80 × 11,491.96
  4. Step 4: Simplify right side
    20,446.24x = 324,197,385.17
  5. Step 5: Solve for x
    x = 324,197,385.17/20,446.24
  6. Step 6: Final answer
    x = 15,856.09

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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.