Home / 20,524.87-28,325.78-11,573.20

Finding the Fourth Proportional to 20,524.87, 28,325.78 and 11,573.20

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Solution

The fourth proportional to 20,524.87, 28,325.78 and 11,573.20 is: 15,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.87 : 28,325.78 = 11,573.20 : x
  2. Step 2: Convert to fraction form
    20,524.87/28,325.78 = 11,573.20/x
  3. Step 3: Cross multiply
    20,524.87x = 28,325.78 × 11,573.20
  4. Step 4: Simplify right side
    20,524.87x = 327,819,917.10
  5. Step 5: Solve for x
    x = 327,819,917.10/20,524.87
  6. Step 6: Final answer
    x = 15,971.84

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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.