Home / 38,664.90-57,997.44-12,371.76

Finding the Fourth Proportional to 38,664.90, 57,997.44 and 12,371.76

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Solution

The fourth proportional to 38,664.90, 57,997.44 and 12,371.76 is: 18,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.90 : 57,997.44 = 12,371.76 : x
  2. Step 2: Convert to fraction form
    38,664.90/57,997.44 = 12,371.76/x
  3. Step 3: Cross multiply
    38,664.90x = 57,997.44 × 12,371.76
  4. Step 4: Simplify right side
    38,664.90x = 717,530,408.29
  5. Step 5: Solve for x
    x = 717,530,408.29/38,664.90
  6. Step 6: Final answer
    x = 18,557.67

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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.