Home / 31,289.23-43,179.16-16,949.09

Finding the Fourth Proportional to 31,289.23, 43,179.16 and 16,949.09

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Solution

The fourth proportional to 31,289.23, 43,179.16 and 16,949.09 is: 23,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.23 : 43,179.16 = 16,949.09 : x
  2. Step 2: Convert to fraction form
    31,289.23/43,179.16 = 16,949.09/x
  3. Step 3: Cross multiply
    31,289.23x = 43,179.16 × 16,949.09
  4. Step 4: Simplify right side
    31,289.23x = 731,847,566.32
  5. Step 5: Solve for x
    x = 731,847,566.32/31,289.23
  6. Step 6: Final answer
    x = 23,389.76

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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.