Home / 37,890.12-52,286.10-20,893.56

Finding the Fourth Proportional to 37,890.12, 52,286.10 and 20,893.56

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Solution

The fourth proportional to 37,890.12, 52,286.10 and 20,893.56 is: 28,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,890.12 : 52,286.10 = 20,893.56 : x
  2. Step 2: Convert to fraction form
    37,890.12/52,286.10 = 20,893.56/x
  3. Step 3: Cross multiply
    37,890.12x = 52,286.10 × 20,893.56
  4. Step 4: Simplify right side
    37,890.12x = 1,092,442,767.52
  5. Step 5: Solve for x
    x = 1,092,442,767.52/37,890.12
  6. Step 6: Final answer
    x = 28,831.86

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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.