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Finding the Fourth Proportional to 36,784.40, 55,234.20 and 21,232.40

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Solution

The fourth proportional to 36,784.40, 55,234.20 and 21,232.40 is: 31,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,784.40 : 55,234.20 = 21,232.40 : x
  2. Step 2: Convert to fraction form
    36,784.40/55,234.20 = 21,232.40/x
  3. Step 3: Cross multiply
    36,784.40x = 55,234.20 × 21,232.40
  4. Step 4: Simplify right side
    36,784.40x = 1,172,754,628.08
  5. Step 5: Solve for x
    x = 1,172,754,628.08/36,784.40
  6. Step 6: Final answer
    x = 31,881.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.