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Finding the Fourth Proportional to 19,773.53, 27,287.11 and 10,820.87

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Solution

The fourth proportional to 19,773.53, 27,287.11 and 10,820.87 is: 14,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.53 : 27,287.11 = 10,820.87 : x
  2. Step 2: Convert to fraction form
    19,773.53/27,287.11 = 10,820.87/x
  3. Step 3: Cross multiply
    19,773.53x = 27,287.11 × 10,820.87
  4. Step 4: Simplify right side
    19,773.53x = 295,270,269.99
  5. Step 5: Solve for x
    x = 295,270,269.99/19,773.53
  6. Step 6: Final answer
    x = 14,932.60

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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.