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Finding the Fourth Proportional to 36,811.50, 50,799.87 and 21,907.50

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Solution

The fourth proportional to 36,811.50, 50,799.87 and 21,907.50 is: 30,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,811.50 : 50,799.87 = 21,907.50 : x
  2. Step 2: Convert to fraction form
    36,811.50/50,799.87 = 21,907.50/x
  3. Step 3: Cross multiply
    36,811.50x = 50,799.87 × 21,907.50
  4. Step 4: Simplify right side
    36,811.50x = 1,112,898,152.03
  5. Step 5: Solve for x
    x = 1,112,898,152.03/36,811.50
  6. Step 6: Final answer
    x = 30,232.35

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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.