Home / 19,773.21-27,292.55-11,280.06

Finding the Fourth Proportional to 19,773.21, 27,292.55 and 11,280.06

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Solution

The fourth proportional to 19,773.21, 27,292.55 and 11,280.06 is: 15,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.21 : 27,292.55 = 11,280.06 : x
  2. Step 2: Convert to fraction form
    19,773.21/27,292.55 = 11,280.06/x
  3. Step 3: Cross multiply
    19,773.21x = 27,292.55 × 11,280.06
  4. Step 4: Simplify right side
    19,773.21x = 307,861,545.15
  5. Step 5: Solve for x
    x = 307,861,545.15/19,773.21
  6. Step 6: Final answer
    x = 15,569.63

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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.