Home / 31,203.43-43,063.74-18,460.71

Finding the Fourth Proportional to 31,203.43, 43,063.74 and 18,460.71

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Solution

The fourth proportional to 31,203.43, 43,063.74 and 18,460.71 is: 25,477.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,203.43 : 43,063.74 = 18,460.71 : x
  2. Step 2: Convert to fraction form
    31,203.43/43,063.74 = 18,460.71/x
  3. Step 3: Cross multiply
    31,203.43x = 43,063.74 × 18,460.71
  4. Step 4: Simplify right side
    31,203.43x = 794,987,141.05
  5. Step 5: Solve for x
    x = 794,987,141.05/31,203.43
  6. Step 6: Final answer
    x = 25,477.56

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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.