Home / 26,905.71-40,358.57-12,111.87

Finding the Fourth Proportional to 26,905.71, 40,358.57 and 12,111.87

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Solution

The fourth proportional to 26,905.71, 40,358.57 and 12,111.87 is: 18,167.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.71 : 40,358.57 = 12,111.87 : x
  2. Step 2: Convert to fraction form
    26,905.71/40,358.57 = 12,111.87/x
  3. Step 3: Cross multiply
    26,905.71x = 40,358.57 × 12,111.87
  4. Step 4: Simplify right side
    26,905.71x = 488,817,753.23
  5. Step 5: Solve for x
    x = 488,817,753.23/26,905.71
  6. Step 6: Final answer
    x = 18,167.81

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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.