Home / 37,131.61-51,240.20-20,135.54

Finding the Fourth Proportional to 37,131.61, 51,240.20 and 20,135.54

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Solution

The fourth proportional to 37,131.61, 51,240.20 and 20,135.54 is: 27,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,131.61 : 51,240.20 = 20,135.54 : x
  2. Step 2: Convert to fraction form
    37,131.61/51,240.20 = 20,135.54/x
  3. Step 3: Cross multiply
    37,131.61x = 51,240.20 × 20,135.54
  4. Step 4: Simplify right side
    37,131.61x = 1,031,749,124.13
  5. Step 5: Solve for x
    x = 1,031,749,124.13/37,131.61
  6. Step 6: Final answer
    x = 27,786.28

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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.