Home / 31,453.77-43,407.39-18,027.61

Finding the Fourth Proportional to 31,453.77, 43,407.39 and 18,027.61

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Solution

The fourth proportional to 31,453.77, 43,407.39 and 18,027.61 is: 24,878.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.77 : 43,407.39 = 18,027.61 : x
  2. Step 2: Convert to fraction form
    31,453.77/43,407.39 = 18,027.61/x
  3. Step 3: Cross multiply
    31,453.77x = 43,407.39 × 18,027.61
  4. Step 4: Simplify right side
    31,453.77x = 782,531,498.04
  5. Step 5: Solve for x
    x = 782,531,498.04/31,453.77
  6. Step 6: Final answer
    x = 24,878.79

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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.