Home / 30,176.57-41,639.39-18,074.21

Finding the Fourth Proportional to 30,176.57, 41,639.39 and 18,074.21

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Solution

The fourth proportional to 30,176.57, 41,639.39 and 18,074.21 is: 24,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,176.57 : 41,639.39 = 18,074.21 : x
  2. Step 2: Convert to fraction form
    30,176.57/41,639.39 = 18,074.21/x
  3. Step 3: Cross multiply
    30,176.57x = 41,639.39 × 18,074.21
  4. Step 4: Simplify right side
    30,176.57x = 752,598,916.12
  5. Step 5: Solve for x
    x = 752,598,916.12/30,176.57
  6. Step 6: Final answer
    x = 24,939.85

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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.