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Finding the Fourth Proportional to 27,211, 40,800.64 and 10,551.57

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Solution

The fourth proportional to 27,211, 40,800.64 and 10,551.57 is: 15,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,211 : 40,800.64 = 10,551.57 : x
  2. Step 2: Convert to fraction form
    27,211/40,800.64 = 10,551.57/x
  3. Step 3: Cross multiply
    27,211x = 40,800.64 × 10,551.57
  4. Step 4: Simplify right side
    27,211x = 430,510,809.00
  5. Step 5: Solve for x
    x = 430,510,809.00/27,211
  6. Step 6: Final answer
    x = 15,821.20

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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.