Home / 31,309.38-43,207.07-16,969.23

Finding the Fourth Proportional to 31,309.38, 43,207.07 and 16,969.23

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Solution

The fourth proportional to 31,309.38, 43,207.07 and 16,969.23 is: 23,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.38 : 43,207.07 = 16,969.23 : x
  2. Step 2: Convert to fraction form
    31,309.38/43,207.07 = 16,969.23/x
  3. Step 3: Cross multiply
    31,309.38x = 43,207.07 × 16,969.23
  4. Step 4: Simplify right side
    31,309.38x = 733,190,623.61
  5. Step 5: Solve for x
    x = 733,190,623.61/31,309.38
  6. Step 6: Final answer
    x = 23,417.60

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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.