Home / 31,313.12-43,211.88-17,165.66

Finding the Fourth Proportional to 31,313.12, 43,211.88 and 17,165.66

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Solution

The fourth proportional to 31,313.12, 43,211.88 and 17,165.66 is: 23,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.12 : 43,211.88 = 17,165.66 : x
  2. Step 2: Convert to fraction form
    31,313.12/43,211.88 = 17,165.66/x
  3. Step 3: Cross multiply
    31,313.12x = 43,211.88 × 17,165.66
  4. Step 4: Simplify right side
    31,313.12x = 741,760,223.98
  5. Step 5: Solve for x
    x = 741,760,223.98/31,313.12
  6. Step 6: Final answer
    x = 23,688.48

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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.