Home / 37,778.37-52,131.93-20,781.97

Finding the Fourth Proportional to 37,778.37, 52,131.93 and 20,781.97

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Solution

The fourth proportional to 37,778.37, 52,131.93 and 20,781.97 is: 28,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,778.37 : 52,131.93 = 20,781.97 : x
  2. Step 2: Convert to fraction form
    37,778.37/52,131.93 = 20,781.97/x
  3. Step 3: Cross multiply
    37,778.37x = 52,131.93 × 20,781.97
  4. Step 4: Simplify right side
    37,778.37x = 1,083,404,055.49
  5. Step 5: Solve for x
    x = 1,083,404,055.49/37,778.37
  6. Step 6: Final answer
    x = 28,677.89

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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.