Home / 26,799.20-36,940.26-21,124.74

Finding the Fourth Proportional to 26,799.20, 36,940.26 and 21,124.74

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Solution

The fourth proportional to 26,799.20, 36,940.26 and 21,124.74 is: 29,118.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,799.20 : 36,940.26 = 21,124.74 : x
  2. Step 2: Convert to fraction form
    26,799.20/36,940.26 = 21,124.74/x
  3. Step 3: Cross multiply
    26,799.20x = 36,940.26 × 21,124.74
  4. Step 4: Simplify right side
    26,799.20x = 780,353,388.03
  5. Step 5: Solve for x
    x = 780,353,388.03/26,799.20
  6. Step 6: Final answer
    x = 29,118.53

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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.