Home / 30,138.21-41,594.58-19,798.80

Finding the Fourth Proportional to 30,138.21, 41,594.58 and 19,798.80

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Solution

The fourth proportional to 30,138.21, 41,594.58 and 19,798.80 is: 27,324.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.21 : 41,594.58 = 19,798.80 : x
  2. Step 2: Convert to fraction form
    30,138.21/41,594.58 = 19,798.80/x
  3. Step 3: Cross multiply
    30,138.21x = 41,594.58 × 19,798.80
  4. Step 4: Simplify right side
    30,138.21x = 823,522,614.52
  5. Step 5: Solve for x
    x = 823,522,614.52/30,138.21
  6. Step 6: Final answer
    x = 27,324.87

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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.