Home / 26,801.20-36,943.02-21,126.74

Finding the Fourth Proportional to 26,801.20, 36,943.02 and 21,126.74

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Solution

The fourth proportional to 26,801.20, 36,943.02 and 21,126.74 is: 29,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,801.20 : 36,943.02 = 21,126.74 : x
  2. Step 2: Convert to fraction form
    26,801.20/36,943.02 = 21,126.74/x
  3. Step 3: Cross multiply
    26,801.20x = 36,943.02 × 21,126.74
  4. Step 4: Simplify right side
    26,801.20x = 780,485,578.35
  5. Step 5: Solve for x
    x = 780,485,578.35/26,801.20
  6. Step 6: Final answer
    x = 29,121.29

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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.