Home / 30,418.41-41,976.96-16,989.85

Finding the Fourth Proportional to 30,418.41, 41,976.96 and 16,989.85

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Solution

The fourth proportional to 30,418.41, 41,976.96 and 16,989.85 is: 23,445.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,418.41 : 41,976.96 = 16,989.85 : x
  2. Step 2: Convert to fraction form
    30,418.41/41,976.96 = 16,989.85/x
  3. Step 3: Cross multiply
    30,418.41x = 41,976.96 × 16,989.85
  4. Step 4: Simplify right side
    30,418.41x = 713,181,959.02
  5. Step 5: Solve for x
    x = 713,181,959.02/30,418.41
  6. Step 6: Final answer
    x = 23,445.74

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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.