Home / 30,615.90-42,249.49-17,185.92

Finding the Fourth Proportional to 30,615.90, 42,249.49 and 17,185.92

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Solution

The fourth proportional to 30,615.90, 42,249.49 and 17,185.92 is: 23,716.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.90 : 42,249.49 = 17,185.92 : x
  2. Step 2: Convert to fraction form
    30,615.90/42,249.49 = 17,185.92/x
  3. Step 3: Cross multiply
    30,615.90x = 42,249.49 × 17,185.92
  4. Step 4: Simplify right side
    30,615.90x = 726,096,355.18
  5. Step 5: Solve for x
    x = 726,096,355.18/30,615.90
  6. Step 6: Final answer
    x = 23,716.32

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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.