Home / 30,648.92-42,290.91-17,217.63

Finding the Fourth Proportional to 30,648.92, 42,290.91 and 17,217.63

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Solution

The fourth proportional to 30,648.92, 42,290.91 and 17,217.63 is: 23,757.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.92 : 42,290.91 = 17,217.63 : x
  2. Step 2: Convert to fraction form
    30,648.92/42,290.91 = 17,217.63/x
  3. Step 3: Cross multiply
    30,648.92x = 42,290.91 × 17,217.63
  4. Step 4: Simplify right side
    30,648.92x = 728,149,240.74
  5. Step 5: Solve for x
    x = 728,149,240.74/30,648.92
  6. Step 6: Final answer
    x = 23,757.75

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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.