Home / 26,788.76-36,933.34-21,991.16

Finding the Fourth Proportional to 26,788.76, 36,933.34 and 21,991.16

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Solution

The fourth proportional to 26,788.76, 36,933.34 and 21,991.16 is: 30,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,788.76 : 36,933.34 = 21,991.16 : x
  2. Step 2: Convert to fraction form
    26,788.76/36,933.34 = 21,991.16/x
  3. Step 3: Cross multiply
    26,788.76x = 36,933.34 × 21,991.16
  4. Step 4: Simplify right side
    26,788.76x = 812,206,989.27
  5. Step 5: Solve for x
    x = 812,206,989.27/26,788.76
  6. Step 6: Final answer
    x = 30,318.95

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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.