Home / 50,685.22-69,939.50-28,021.15

Finding the Fourth Proportional to 50,685.22, 69,939.50 and 28,021.15

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Solution

The fourth proportional to 50,685.22, 69,939.50 and 28,021.15 is: 38,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,685.22 : 69,939.50 = 28,021.15 : x
  2. Step 2: Convert to fraction form
    50,685.22/69,939.50 = 28,021.15/x
  3. Step 3: Cross multiply
    50,685.22x = 69,939.50 × 28,021.15
  4. Step 4: Simplify right side
    50,685.22x = 1,959,785,272.82
  5. Step 5: Solve for x
    x = 1,959,785,272.82/50,685.22
  6. Step 6: Final answer
    x = 38,665.81

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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.