Home / 30,879.84-42,610.77-17,451.08

Finding the Fourth Proportional to 30,879.84, 42,610.77 and 17,451.08

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Solution

The fourth proportional to 30,879.84, 42,610.77 and 17,451.08 is: 24,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.84 : 42,610.77 = 17,451.08 : x
  2. Step 2: Convert to fraction form
    30,879.84/42,610.77 = 17,451.08/x
  3. Step 3: Cross multiply
    30,879.84x = 42,610.77 × 17,451.08
  4. Step 4: Simplify right side
    30,879.84x = 743,603,743.08
  5. Step 5: Solve for x
    x = 743,603,743.08/30,879.84
  6. Step 6: Final answer
    x = 24,080.56

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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.