Home / 31,313.80-43,213.40-17,886.84

Finding the Fourth Proportional to 31,313.80, 43,213.40 and 17,886.84

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Solution

The fourth proportional to 31,313.80, 43,213.40 and 17,886.84 is: 24,684.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.80 : 43,213.40 = 17,886.84 : x
  2. Step 2: Convert to fraction form
    31,313.80/43,213.40 = 17,886.84/x
  3. Step 3: Cross multiply
    31,313.80x = 43,213.40 × 17,886.84
  4. Step 4: Simplify right side
    31,313.80x = 772,951,171.66
  5. Step 5: Solve for x
    x = 772,951,171.66/31,313.80
  6. Step 6: Final answer
    x = 24,684.04

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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.