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Finding the Fourth Proportional to 27,560.40, 41,243.40 and 18,812.40

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Solution

The fourth proportional to 27,560.40, 41,243.40 and 18,812.40 is: 28,152.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,560.40 : 41,243.40 = 18,812.40 : x
  2. Step 2: Convert to fraction form
    27,560.40/41,243.40 = 18,812.40/x
  3. Step 3: Cross multiply
    27,560.40x = 41,243.40 × 18,812.40
  4. Step 4: Simplify right side
    27,560.40x = 775,887,338.16
  5. Step 5: Solve for x
    x = 775,887,338.16/27,560.40
  6. Step 6: Final answer
    x = 28,152.25

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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.