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Finding the Fourth Proportional to 36,783, 50,766.20 and 20,864.08

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Solution

The fourth proportional to 36,783, 50,766.20 and 20,864.08 is: 28,795.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,783 : 50,766.20 = 20,864.08 : x
  2. Step 2: Convert to fraction form
    36,783/50,766.20 = 20,864.08/x
  3. Step 3: Cross multiply
    36,783x = 50,766.20 × 20,864.08
  4. Step 4: Simplify right side
    36,783x = 1,059,190,058.10
  5. Step 5: Solve for x
    x = 1,059,190,058.10/36,783
  6. Step 6: Final answer
    x = 28,795.64

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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.