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Finding the Fourth Proportional to 27,011.30, 40,515.03 and 7,290.98

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Solution

The fourth proportional to 27,011.30, 40,515.03 and 7,290.98 is: 10,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,011.30 : 40,515.03 = 7,290.98 : x
  2. Step 2: Convert to fraction form
    27,011.30/40,515.03 = 7,290.98/x
  3. Step 3: Cross multiply
    27,011.30x = 40,515.03 × 7,290.98
  4. Step 4: Simplify right side
    27,011.30x = 295,394,273.43
  5. Step 5: Solve for x
    x = 295,394,273.43/27,011.30
  6. Step 6: Final answer
    x = 10,935.95

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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.