Home / 31,720.68-43,770.96-17,570.88

Finding the Fourth Proportional to 31,720.68, 43,770.96 and 17,570.88

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Solution

The fourth proportional to 31,720.68, 43,770.96 and 17,570.88 is: 24,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.68 : 43,770.96 = 17,570.88 : x
  2. Step 2: Convert to fraction form
    31,720.68/43,770.96 = 17,570.88/x
  3. Step 3: Cross multiply
    31,720.68x = 43,770.96 × 17,570.88
  4. Step 4: Simplify right side
    31,720.68x = 769,094,285.64
  5. Step 5: Solve for x
    x = 769,094,285.64/31,720.68
  6. Step 6: Final answer
    x = 24,245.83

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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.