Home / 29,077.20-40,121.69-17,138.93

Finding the Fourth Proportional to 29,077.20, 40,121.69 and 17,138.93

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Solution

The fourth proportional to 29,077.20, 40,121.69 and 17,138.93 is: 23,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,077.20 : 40,121.69 = 17,138.93 : x
  2. Step 2: Convert to fraction form
    29,077.20/40,121.69 = 17,138.93/x
  3. Step 3: Cross multiply
    29,077.20x = 40,121.69 × 17,138.93
  4. Step 4: Simplify right side
    29,077.20x = 687,642,550.09
  5. Step 5: Solve for x
    x = 687,642,550.09/29,077.20
  6. Step 6: Final answer
    x = 23,648.86

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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.