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Finding the Fourth Proportional to 27,299.72, 40,940.87 and 10,655.70

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Solution

The fourth proportional to 27,299.72, 40,940.87 and 10,655.70 is: 15,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,299.72 : 40,940.87 = 10,655.70 : x
  2. Step 2: Convert to fraction form
    27,299.72/40,940.87 = 10,655.70/x
  3. Step 3: Cross multiply
    27,299.72x = 40,940.87 × 10,655.70
  4. Step 4: Simplify right side
    27,299.72x = 436,253,575.18
  5. Step 5: Solve for x
    x = 436,253,575.18/27,299.72
  6. Step 6: Final answer
    x = 15,980.15

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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.