Home / 36,890.82-50,905.90-20,972.16

Finding the Fourth Proportional to 36,890.82, 50,905.90 and 20,972.16

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Solution

The fourth proportional to 36,890.82, 50,905.90 and 20,972.16 is: 28,939.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,890.82 : 50,905.90 = 20,972.16 : x
  2. Step 2: Convert to fraction form
    36,890.82/50,905.90 = 20,972.16/x
  3. Step 3: Cross multiply
    36,890.82x = 50,905.90 × 20,972.16
  4. Step 4: Simplify right side
    36,890.82x = 1,067,606,679.74
  5. Step 5: Solve for x
    x = 1,067,606,679.74/36,890.82
  6. Step 6: Final answer
    x = 28,939.63

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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.