Home / 20,449.08-28,219.86-11,496.52

Finding the Fourth Proportional to 20,449.08, 28,219.86 and 11,496.52

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Solution

The fourth proportional to 20,449.08, 28,219.86 and 11,496.52 is: 15,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.08 : 28,219.86 = 11,496.52 : x
  2. Step 2: Convert to fraction form
    20,449.08/28,219.86 = 11,496.52/x
  3. Step 3: Cross multiply
    20,449.08x = 28,219.86 × 11,496.52
  4. Step 4: Simplify right side
    20,449.08x = 324,430,184.89
  5. Step 5: Solve for x
    x = 324,430,184.89/20,449.08
  6. Step 6: Final answer
    x = 15,865.27

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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.