Home / 26,157.87-39,166.34-20,867.76

Finding the Fourth Proportional to 26,157.87, 39,166.34 and 20,867.76

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Solution

The fourth proportional to 26,157.87, 39,166.34 and 20,867.76 is: 31,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,157.87 : 39,166.34 = 20,867.76 : x
  2. Step 2: Convert to fraction form
    26,157.87/39,166.34 = 20,867.76/x
  3. Step 3: Cross multiply
    26,157.87x = 39,166.34 × 20,867.76
  4. Step 4: Simplify right side
    26,157.87x = 817,313,678.86
  5. Step 5: Solve for x
    x = 817,313,678.86/26,157.87
  6. Step 6: Final answer
    x = 31,245.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.