Home / 20,446.76-28,216.80-11,493.74

Finding the Fourth Proportional to 20,446.76, 28,216.80 and 11,493.74

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Solution

The fourth proportional to 20,446.76, 28,216.80 and 11,493.74 is: 15,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.76 : 28,216.80 = 11,493.74 : x
  2. Step 2: Convert to fraction form
    20,446.76/28,216.80 = 11,493.74/x
  3. Step 3: Cross multiply
    20,446.76x = 28,216.80 × 11,493.74
  4. Step 4: Simplify right side
    20,446.76x = 324,316,633.37
  5. Step 5: Solve for x
    x = 324,316,633.37/20,446.76
  6. Step 6: Final answer
    x = 15,861.52

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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.