Home / 31,317.68-43,218.24-16,977.46

Finding the Fourth Proportional to 31,317.68, 43,218.24 and 16,977.46

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Solution

The fourth proportional to 31,317.68, 43,218.24 and 16,977.46 is: 23,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.68 : 43,218.24 = 16,977.46 : x
  2. Step 2: Convert to fraction form
    31,317.68/43,218.24 = 16,977.46/x
  3. Step 3: Cross multiply
    31,317.68x = 43,218.24 × 16,977.46
  4. Step 4: Simplify right side
    31,317.68x = 733,735,940.87
  5. Step 5: Solve for x
    x = 733,735,940.87/31,317.68
  6. Step 6: Final answer
    x = 23,428.81

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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.