Home / 36,786.16-55,130.64-13,390.12

Finding the Fourth Proportional to 36,786.16, 55,130.64 and 13,390.12

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Solution

The fourth proportional to 36,786.16, 55,130.64 and 13,390.12 is: 20,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,786.16 : 55,130.64 = 13,390.12 : x
  2. Step 2: Convert to fraction form
    36,786.16/55,130.64 = 13,390.12/x
  3. Step 3: Cross multiply
    36,786.16x = 55,130.64 × 13,390.12
  4. Step 4: Simplify right side
    36,786.16x = 738,205,903.98
  5. Step 5: Solve for x
    x = 738,205,903.98/36,786.16
  6. Step 6: Final answer
    x = 20,067.49

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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.