Home / 20,444.40-28,216.26-11,492.64

Finding the Fourth Proportional to 20,444.40, 28,216.26 and 11,492.64

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Solution

The fourth proportional to 20,444.40, 28,216.26 and 11,492.64 is: 15,861.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.40 : 28,216.26 = 11,492.64 : x
  2. Step 2: Convert to fraction form
    20,444.40/28,216.26 = 11,492.64/x
  3. Step 3: Cross multiply
    20,444.40x = 28,216.26 × 11,492.64
  4. Step 4: Simplify right side
    20,444.40x = 324,279,318.33
  5. Step 5: Solve for x
    x = 324,279,318.33/20,444.40
  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.