Home / 31,357.26-43,270.20-17,209.80

Finding the Fourth Proportional to 31,357.26, 43,270.20 and 17,209.80

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Solution

The fourth proportional to 31,357.26, 43,270.20 and 17,209.80 is: 23,747.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.26 : 43,270.20 = 17,209.80 : x
  2. Step 2: Convert to fraction form
    31,357.26/43,270.20 = 17,209.80/x
  3. Step 3: Cross multiply
    31,357.26x = 43,270.20 × 17,209.80
  4. Step 4: Simplify right side
    31,357.26x = 744,671,487.96
  5. Step 5: Solve for x
    x = 744,671,487.96/31,357.26
  6. Step 6: Final answer
    x = 23,747.98

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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.