Home / 31,778.55-43,849.44-18,347.22

Finding the Fourth Proportional to 31,778.55, 43,849.44 and 18,347.22

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Solution

The fourth proportional to 31,778.55, 43,849.44 and 18,347.22 is: 25,316.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.55 : 43,849.44 = 18,347.22 : x
  2. Step 2: Convert to fraction form
    31,778.55/43,849.44 = 18,347.22/x
  3. Step 3: Cross multiply
    31,778.55x = 43,849.44 × 18,347.22
  4. Step 4: Simplify right side
    31,778.55x = 804,515,322.56
  5. Step 5: Solve for x
    x = 804,515,322.56/31,778.55
  6. Step 6: Final answer
    x = 25,316.30

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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.