Home / 31,190.72-43,044.36-17,764.36

Finding the Fourth Proportional to 31,190.72, 43,044.36 and 17,764.36

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Solution

The fourth proportional to 31,190.72, 43,044.36 and 17,764.36 is: 24,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.72 : 43,044.36 = 17,764.36 : x
  2. Step 2: Convert to fraction form
    31,190.72/43,044.36 = 17,764.36/x
  3. Step 3: Cross multiply
    31,190.72x = 43,044.36 × 17,764.36
  4. Step 4: Simplify right side
    31,190.72x = 764,655,507.01
  5. Step 5: Solve for x
    x = 764,655,507.01/31,190.72
  6. Step 6: Final answer
    x = 24,515.48

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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.