Home / 26,797.20-36,937.51-21,122.74

Finding the Fourth Proportional to 26,797.20, 36,937.51 and 21,122.74

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Solution

The fourth proportional to 26,797.20, 36,937.51 and 21,122.74 is: 29,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,797.20 : 36,937.51 = 21,122.74 : x
  2. Step 2: Convert to fraction form
    26,797.20/36,937.51 = 21,122.74/x
  3. Step 3: Cross multiply
    26,797.20x = 36,937.51 × 21,122.74
  4. Step 4: Simplify right side
    26,797.20x = 780,221,419.98
  5. Step 5: Solve for x
    x = 780,221,419.98/26,797.20
  6. Step 6: Final answer
    x = 29,115.78

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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.