Home / 31,765.64-43,836.80-17,619.39

Finding the Fourth Proportional to 31,765.64, 43,836.80 and 17,619.39

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Solution

The fourth proportional to 31,765.64, 43,836.80 and 17,619.39 is: 24,314.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.64 : 43,836.80 = 17,619.39 : x
  2. Step 2: Convert to fraction form
    31,765.64/43,836.80 = 17,619.39/x
  3. Step 3: Cross multiply
    31,765.64x = 43,836.80 × 17,619.39
  4. Step 4: Simplify right side
    31,765.64x = 772,377,675.55
  5. Step 5: Solve for x
    x = 772,377,675.55/31,765.64
  6. Step 6: Final answer
    x = 24,314.88

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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.