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Finding the Fourth Proportional to 36,648.20, 50,530.20 and 30,972.94

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Solution

The fourth proportional to 36,648.20, 50,530.20 and 30,972.94 is: 42,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,648.20 : 50,530.20 = 30,972.94 : x
  2. Step 2: Convert to fraction form
    36,648.20/50,530.20 = 30,972.94/x
  3. Step 3: Cross multiply
    36,648.20x = 50,530.20 × 30,972.94
  4. Step 4: Simplify right side
    36,648.20x = 1,565,068,610.31
  5. Step 5: Solve for x
    x = 1,565,068,610.31/36,648.20
  6. Step 6: Final answer
    x = 42,705.19

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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.