Home / 31,309.03-43,206.62-18,733.78

Finding the Fourth Proportional to 31,309.03, 43,206.62 and 18,733.78

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Solution

The fourth proportional to 31,309.03, 43,206.62 and 18,733.78 is: 25,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.03 : 43,206.62 = 18,733.78 : x
  2. Step 2: Convert to fraction form
    31,309.03/43,206.62 = 18,733.78/x
  3. Step 3: Cross multiply
    31,309.03x = 43,206.62 × 18,733.78
  4. Step 4: Simplify right side
    31,309.03x = 809,423,273.96
  5. Step 5: Solve for x
    x = 809,423,273.96/31,309.03
  6. Step 6: Final answer
    x = 25,852.71

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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.