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Finding the Fourth Proportional to 27,390.71, 41,086.35 and 8,670.39

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Solution

The fourth proportional to 27,390.71, 41,086.35 and 8,670.39 is: 13,005.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,390.71 : 41,086.35 = 8,670.39 : x
  2. Step 2: Convert to fraction form
    27,390.71/41,086.35 = 8,670.39/x
  3. Step 3: Cross multiply
    27,390.71x = 41,086.35 × 8,670.39
  4. Step 4: Simplify right side
    27,390.71x = 356,234,678.18
  5. Step 5: Solve for x
    x = 356,234,678.18/27,390.71
  6. Step 6: Final answer
    x = 13,005.68

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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.