Home / 26,688.81-40,028.68-8,917.46

Finding the Fourth Proportional to 26,688.81, 40,028.68 and 8,917.46

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Solution

The fourth proportional to 26,688.81, 40,028.68 and 8,917.46 is: 13,374.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.81 : 40,028.68 = 8,917.46 : x
  2. Step 2: Convert to fraction form
    26,688.81/40,028.68 = 8,917.46/x
  3. Step 3: Cross multiply
    26,688.81x = 40,028.68 × 8,917.46
  4. Step 4: Simplify right side
    26,688.81x = 356,954,152.75
  5. Step 5: Solve for x
    x = 356,954,152.75/26,688.81
  6. Step 6: Final answer
    x = 13,374.67

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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.