Home / 31,329.66-43,234.72-16,989.34

Finding the Fourth Proportional to 31,329.66, 43,234.72 and 16,989.34

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Solution

The fourth proportional to 31,329.66, 43,234.72 and 16,989.34 is: 23,445.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.66 : 43,234.72 = 16,989.34 : x
  2. Step 2: Convert to fraction form
    31,329.66/43,234.72 = 16,989.34/x
  3. Step 3: Cross multiply
    31,329.66x = 43,234.72 × 16,989.34
  4. Step 4: Simplify right side
    31,329.66x = 734,529,357.88
  5. Step 5: Solve for x
    x = 734,529,357.88/31,329.66
  6. Step 6: Final answer
    x = 23,445.17

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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.