Home / 20,406.06-30,608.69-8,395.68

Finding the Fourth Proportional to 20,406.06, 30,608.69 and 8,395.68

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Solution

The fourth proportional to 20,406.06, 30,608.69 and 8,395.68 is: 12,593.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.06 : 30,608.69 = 8,395.68 : x
  2. Step 2: Convert to fraction form
    20,406.06/30,608.69 = 8,395.68/x
  3. Step 3: Cross multiply
    20,406.06x = 30,608.69 × 8,395.68
  4. Step 4: Simplify right side
    20,406.06x = 256,980,839.26
  5. Step 5: Solve for x
    x = 256,980,839.26/20,406.06
  6. Step 6: Final answer
    x = 12,593.36

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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.