Home / 30,758.38-42,169.73-30,197.87

Finding the Fourth Proportional to 30,758.38, 42,169.73 and 30,197.87

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Solution

The fourth proportional to 30,758.38, 42,169.73 and 30,197.87 is: 41,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,758.38 : 42,169.73 = 30,197.87 : x
  2. Step 2: Convert to fraction form
    30,758.38/42,169.73 = 30,197.87/x
  3. Step 3: Cross multiply
    30,758.38x = 42,169.73 × 30,197.87
  4. Step 4: Simplify right side
    30,758.38x = 1,273,435,820.77
  5. Step 5: Solve for x
    x = 1,273,435,820.77/30,758.38
  6. Step 6: Final answer
    x = 41,401.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.