Home / 36,781.34-50,784.30-28,724.09

Finding the Fourth Proportional to 36,781.34, 50,784.30 and 28,724.09

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Solution

The fourth proportional to 36,781.34, 50,784.30 and 28,724.09 is: 39,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,781.34 : 50,784.30 = 28,724.09 : x
  2. Step 2: Convert to fraction form
    36,781.34/50,784.30 = 28,724.09/x
  3. Step 3: Cross multiply
    36,781.34x = 50,784.30 × 28,724.09
  4. Step 4: Simplify right side
    36,781.34x = 1,458,732,549.87
  5. Step 5: Solve for x
    x = 1,458,732,549.87/36,781.34
  6. Step 6: Final answer
    x = 39,659.59

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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.