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Finding the Fourth Proportional to 27,320.20, 40,980.30 and 9,809.80

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Solution

The fourth proportional to 27,320.20, 40,980.30 and 9,809.80 is: 14,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.20 : 40,980.30 = 9,809.80 : x
  2. Step 2: Convert to fraction form
    27,320.20/40,980.30 = 9,809.80/x
  3. Step 3: Cross multiply
    27,320.20x = 40,980.30 × 9,809.80
  4. Step 4: Simplify right side
    27,320.20x = 402,008,546.94
  5. Step 5: Solve for x
    x = 402,008,546.94/27,320.20
  6. Step 6: Final answer
    x = 14,714.70

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