Home / 30,650.61-42,297.87-17,221.86

Finding the Fourth Proportional to 30,650.61, 42,297.87 and 17,221.86

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Solution

The fourth proportional to 30,650.61, 42,297.87 and 17,221.86 is: 23,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,650.61 : 42,297.87 = 17,221.86 : x
  2. Step 2: Convert to fraction form
    30,650.61/42,297.87 = 17,221.86/x
  3. Step 3: Cross multiply
    30,650.61x = 42,297.87 × 17,221.86
  4. Step 4: Simplify right side
    30,650.61x = 728,447,995.44
  5. Step 5: Solve for x
    x = 728,447,995.44/30,650.61
  6. Step 6: Final answer
    x = 23,766.18

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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.