Home / 40,410.86-60,616.38-19,619.78

Finding the Fourth Proportional to 40,410.86, 60,616.38 and 19,619.78

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Solution

The fourth proportional to 40,410.86, 60,616.38 and 19,619.78 is: 29,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,410.86 : 60,616.38 = 19,619.78 : x
  2. Step 2: Convert to fraction form
    40,410.86/60,616.38 = 19,619.78/x
  3. Step 3: Cross multiply
    40,410.86x = 60,616.38 × 19,619.78
  4. Step 4: Simplify right side
    40,410.86x = 1,189,280,040.00
  5. Step 5: Solve for x
    x = 1,189,280,040.00/40,410.86
  6. Step 6: Final answer
    x = 29,429.71

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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.