Home / 30,390.24-41,935.69-17,640.04

Finding the Fourth Proportional to 30,390.24, 41,935.69 and 17,640.04

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Solution

The fourth proportional to 30,390.24, 41,935.69 and 17,640.04 is: 24,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390.24 : 41,935.69 = 17,640.04 : x
  2. Step 2: Convert to fraction form
    30,390.24/41,935.69 = 17,640.04/x
  3. Step 3: Cross multiply
    30,390.24x = 41,935.69 × 17,640.04
  4. Step 4: Simplify right side
    30,390.24x = 739,747,249.03
  5. Step 5: Solve for x
    x = 739,747,249.03/30,390.24
  6. Step 6: Final answer
    x = 24,341.61

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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.