Home / 31,310.12-43,208.72-17,163.76

Finding the Fourth Proportional to 31,310.12, 43,208.72 and 17,163.76

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Solution

The fourth proportional to 31,310.12, 43,208.72 and 17,163.76 is: 23,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.12 : 43,208.72 = 17,163.76 : x
  2. Step 2: Convert to fraction form
    31,310.12/43,208.72 = 17,163.76/x
  3. Step 3: Cross multiply
    31,310.12x = 43,208.72 × 17,163.76
  4. Step 4: Simplify right side
    31,310.12x = 741,624,099.99
  5. Step 5: Solve for x
    x = 741,624,099.99/31,310.12
  6. Step 6: Final answer
    x = 23,686.40

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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.