Home / 40,120.32-60,183.84-13,814.40

Finding the Fourth Proportional to 40,120.32, 60,183.84 and 13,814.40

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Solution

The fourth proportional to 40,120.32, 60,183.84 and 13,814.40 is: 20,722.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,120.32 : 60,183.84 = 13,814.40 : x
  2. Step 2: Convert to fraction form
    40,120.32/60,183.84 = 13,814.40/x
  3. Step 3: Cross multiply
    40,120.32x = 60,183.84 × 13,814.40
  4. Step 4: Simplify right side
    40,120.32x = 831,403,639.30
  5. Step 5: Solve for x
    x = 831,403,639.30/40,120.32
  6. Step 6: Final answer
    x = 20,722.76

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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.