Home / 31,715.36-43,767.06-18,286.52

Finding the Fourth Proportional to 31,715.36, 43,767.06 and 18,286.52

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Solution

The fourth proportional to 31,715.36, 43,767.06 and 18,286.52 is: 25,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,715.36 : 43,767.06 = 18,286.52 : x
  2. Step 2: Convert to fraction form
    31,715.36/43,767.06 = 18,286.52/x
  3. Step 3: Cross multiply
    31,715.36x = 43,767.06 × 18,286.52
  4. Step 4: Simplify right side
    31,715.36x = 800,347,218.03
  5. Step 5: Solve for x
    x = 800,347,218.03/31,715.36
  6. Step 6: Final answer
    x = 25,235.32

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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.