Home / 31,472.16-43,431.12-17,324.64

Finding the Fourth Proportional to 31,472.16, 43,431.12 and 17,324.64

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Solution

The fourth proportional to 31,472.16, 43,431.12 and 17,324.64 is: 23,907.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,472.16 : 43,431.12 = 17,324.64 : x
  2. Step 2: Convert to fraction form
    31,472.16/43,431.12 = 17,324.64/x
  3. Step 3: Cross multiply
    31,472.16x = 43,431.12 × 17,324.64
  4. Step 4: Simplify right side
    31,472.16x = 752,428,518.80
  5. Step 5: Solve for x
    x = 752,428,518.80/31,472.16
  6. Step 6: Final answer
    x = 23,907.75

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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.