Home / 26,861.13-40,287.98-7,141.29

Finding the Fourth Proportional to 26,861.13, 40,287.98 and 7,141.29

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Solution

The fourth proportional to 26,861.13, 40,287.98 and 7,141.29 is: 10,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.13 : 40,287.98 = 7,141.29 : x
  2. Step 2: Convert to fraction form
    26,861.13/40,287.98 = 7,141.29/x
  3. Step 3: Cross multiply
    26,861.13x = 40,287.98 × 7,141.29
  4. Step 4: Simplify right side
    26,861.13x = 287,708,112.99
  5. Step 5: Solve for x
    x = 287,708,112.99/26,861.13
  6. Step 6: Final answer
    x = 10,710.95

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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.