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Finding the Fourth Proportional to 36,687.76, 50,628.72 and 19,920.76

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Solution

The fourth proportional to 36,687.76, 50,628.72 and 19,920.76 is: 27,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,687.76 : 50,628.72 = 19,920.76 : x
  2. Step 2: Convert to fraction form
    36,687.76/50,628.72 = 19,920.76/x
  3. Step 3: Cross multiply
    36,687.76x = 50,628.72 × 19,920.76
  4. Step 4: Simplify right side
    36,687.76x = 1,008,562,580.23
  5. Step 5: Solve for x
    x = 1,008,562,580.23/36,687.76
  6. Step 6: Final answer
    x = 27,490.44

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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.