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Finding the Fourth Proportional to 36,718.74, 50,667.75 and 20,799.78

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Solution

The fourth proportional to 36,718.74, 50,667.75 and 20,799.78 is: 28,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,718.74 : 50,667.75 = 20,799.78 : x
  2. Step 2: Convert to fraction form
    36,718.74/50,667.75 = 20,799.78/x
  3. Step 3: Cross multiply
    36,718.74x = 50,667.75 × 20,799.78
  4. Step 4: Simplify right side
    36,718.74x = 1,053,878,053.10
  5. Step 5: Solve for x
    x = 1,053,878,053.10/36,718.74
  6. Step 6: Final answer
    x = 28,701.37

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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.