Home / 22,122.87-30,540.56-15,086.27

Finding the Fourth Proportional to 22,122.87, 30,540.56 and 15,086.27

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Solution

The fourth proportional to 22,122.87, 30,540.56 and 15,086.27 is: 20,826.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.87 : 30,540.56 = 15,086.27 : x
  2. Step 2: Convert to fraction form
    22,122.87/30,540.56 = 15,086.27/x
  3. Step 3: Cross multiply
    22,122.87x = 30,540.56 × 15,086.27
  4. Step 4: Simplify right side
    22,122.87x = 460,742,905.98
  5. Step 5: Solve for x
    x = 460,742,905.98/22,122.87
  6. Step 6: Final answer
    x = 20,826.54

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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.