Home / 30,600.12-42,229.00-17,172.19

Finding the Fourth Proportional to 30,600.12, 42,229.00 and 17,172.19

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Solution

The fourth proportional to 30,600.12, 42,229.00 and 17,172.19 is: 23,698.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.12 : 42,229.00 = 17,172.19 : x
  2. Step 2: Convert to fraction form
    30,600.12/42,229.00 = 17,172.19/x
  3. Step 3: Cross multiply
    30,600.12x = 42,229.00 × 17,172.19
  4. Step 4: Simplify right side
    30,600.12x = 725,164,418.86
  5. Step 5: Solve for x
    x = 725,164,418.86/30,600.12
  6. Step 6: Final answer
    x = 23,698.09

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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.