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Finding the Fourth Proportional to 36,827.51, 50,822.30 and 20,912.31

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Solution

The fourth proportional to 36,827.51, 50,822.30 and 20,912.31 is: 28,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,827.51 : 50,822.30 = 20,912.31 : x
  2. Step 2: Convert to fraction form
    36,827.51/50,822.30 = 20,912.31/x
  3. Step 3: Cross multiply
    36,827.51x = 50,822.30 × 20,912.31
  4. Step 4: Simplify right side
    36,827.51x = 1,062,811,744.79
  5. Step 5: Solve for x
    x = 1,062,811,744.79/36,827.51
  6. Step 6: Final answer
    x = 28,859.18

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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.