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Finding the Fourth Proportional to 36,895.50, 50,915.79 and 21,991.50

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Solution

The fourth proportional to 36,895.50, 50,915.79 and 21,991.50 is: 30,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,895.50 : 50,915.79 = 21,991.50 : x
  2. Step 2: Convert to fraction form
    36,895.50/50,915.79 = 21,991.50/x
  3. Step 3: Cross multiply
    36,895.50x = 50,915.79 × 21,991.50
  4. Step 4: Simplify right side
    36,895.50x = 1,119,714,595.79
  5. Step 5: Solve for x
    x = 1,119,714,595.79/36,895.50
  6. Step 6: Final answer
    x = 30,348.27

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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.