Home / 31,296.80-43,189.60-17,149.64

Finding the Fourth Proportional to 31,296.80, 43,189.60 and 17,149.64

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Solution

The fourth proportional to 31,296.80, 43,189.60 and 17,149.64 is: 23,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,296.80 : 43,189.60 = 17,149.64 : x
  2. Step 2: Convert to fraction form
    31,296.80/43,189.60 = 17,149.64/x
  3. Step 3: Cross multiply
    31,296.80x = 43,189.60 × 17,149.64
  4. Step 4: Simplify right side
    31,296.80x = 740,686,059.79
  5. Step 5: Solve for x
    x = 740,686,059.79/31,296.80
  6. Step 6: Final answer
    x = 23,666.51

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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.