Home / 31,322.72-46,972.32-10,257.76

Finding the Fourth Proportional to 31,322.72, 46,972.32 and 10,257.76

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Solution

The fourth proportional to 31,322.72, 46,972.32 and 10,257.76 is: 15,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,322.72 : 46,972.32 = 10,257.76 : x
  2. Step 2: Convert to fraction form
    31,322.72/46,972.32 = 10,257.76/x
  3. Step 3: Cross multiply
    31,322.72x = 46,972.32 × 10,257.76
  4. Step 4: Simplify right side
    31,322.72x = 481,830,785.20
  5. Step 5: Solve for x
    x = 481,830,785.20/31,322.72
  6. Step 6: Final answer
    x = 15,382.79

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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.