Home / 31,121.75-46,682.64-10,345.25

Finding the Fourth Proportional to 31,121.75, 46,682.64 and 10,345.25

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Solution

The fourth proportional to 31,121.75, 46,682.64 and 10,345.25 is: 15,517.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.75 : 46,682.64 = 10,345.25 : x
  2. Step 2: Convert to fraction form
    31,121.75/46,682.64 = 10,345.25/x
  3. Step 3: Cross multiply
    31,121.75x = 46,682.64 × 10,345.25
  4. Step 4: Simplify right side
    31,121.75x = 482,943,581.46
  5. Step 5: Solve for x
    x = 482,943,581.46/31,121.75
  6. Step 6: Final answer
    x = 15,517.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.