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Finding the Fourth Proportional to 27,143.40, 40,715.10 and 9,610.95

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Solution

The fourth proportional to 27,143.40, 40,715.10 and 9,610.95 is: 14,416.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.40 : 40,715.10 = 9,610.95 : x
  2. Step 2: Convert to fraction form
    27,143.40/40,715.10 = 9,610.95/x
  3. Step 3: Cross multiply
    27,143.40x = 40,715.10 × 9,610.95
  4. Step 4: Simplify right side
    27,143.40x = 391,310,790.35
  5. Step 5: Solve for x
    x = 391,310,790.35/27,143.40
  6. Step 6: Final answer
    x = 14,416.43

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.