Home / 40,081.24-60,121.24-13,786.21

Finding the Fourth Proportional to 40,081.24, 60,121.24 and 13,786.21

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Solution

The fourth proportional to 40,081.24, 60,121.24 and 13,786.21 is: 20,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,081.24 : 60,121.24 = 13,786.21 : x
  2. Step 2: Convert to fraction form
    40,081.24/60,121.24 = 13,786.21/x
  3. Step 3: Cross multiply
    40,081.24x = 60,121.24 × 13,786.21
  4. Step 4: Simplify right side
    40,081.24x = 828,844,040.10
  5. Step 5: Solve for x
    x = 828,844,040.10/40,081.24
  6. Step 6: Final answer
    x = 20,679.10

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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.