Home / 30,850.54-42,574.01-18,103.91

Finding the Fourth Proportional to 30,850.54, 42,574.01 and 18,103.91

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Solution

The fourth proportional to 30,850.54, 42,574.01 and 18,103.91 is: 24,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,850.54 : 42,574.01 = 18,103.91 : x
  2. Step 2: Convert to fraction form
    30,850.54/42,574.01 = 18,103.91/x
  3. Step 3: Cross multiply
    30,850.54x = 42,574.01 × 18,103.91
  4. Step 4: Simplify right side
    30,850.54x = 770,755,741.99
  5. Step 5: Solve for x
    x = 770,755,741.99/30,850.54
  6. Step 6: Final answer
    x = 24,983.54

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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.