Home / 37,548.75-51,818.90-20,781.75

Finding the Fourth Proportional to 37,548.75, 51,818.90 and 20,781.75

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Solution

The fourth proportional to 37,548.75, 51,818.90 and 20,781.75 is: 28,679.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,548.75 : 51,818.90 = 20,781.75 : x
  2. Step 2: Convert to fraction form
    37,548.75/51,818.90 = 20,781.75/x
  3. Step 3: Cross multiply
    37,548.75x = 51,818.90 × 20,781.75
  4. Step 4: Simplify right side
    37,548.75x = 1,076,887,321.17
  5. Step 5: Solve for x
    x = 1,076,887,321.17/37,548.75
  6. Step 6: Final answer
    x = 28,679.71

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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.