Home / 30,144.20-41,603.76-18,209.24

Finding the Fourth Proportional to 30,144.20, 41,603.76 and 18,209.24

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Solution

The fourth proportional to 30,144.20, 41,603.76 and 18,209.24 is: 25,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.20 : 41,603.76 = 18,209.24 : x
  2. Step 2: Convert to fraction form
    30,144.20/41,603.76 = 18,209.24/x
  3. Step 3: Cross multiply
    30,144.20x = 41,603.76 × 18,209.24
  4. Step 4: Simplify right side
    30,144.20x = 757,572,850.74
  5. Step 5: Solve for x
    x = 757,572,850.74/30,144.20
  6. Step 6: Final answer
    x = 25,131.63

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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.