Home / 14,015.45-21,025.38-4,155.71

Finding the Fourth Proportional to 14,015.45, 21,025.38 and 4,155.71

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Solution

The fourth proportional to 14,015.45, 21,025.38 and 4,155.71 is: 6,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.45 : 21,025.38 = 4,155.71 : x
  2. Step 2: Convert to fraction form
    14,015.45/21,025.38 = 4,155.71/x
  3. Step 3: Cross multiply
    14,015.45x = 21,025.38 × 4,155.71
  4. Step 4: Simplify right side
    14,015.45x = 87,375,381.92
  5. Step 5: Solve for x
    x = 87,375,381.92/14,015.45
  6. Step 6: Final answer
    x = 6,234.22

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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.