Home / 22,268.81-30,729.35-12,195.63

Finding the Fourth Proportional to 22,268.81, 30,729.35 and 12,195.63

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Solution

The fourth proportional to 22,268.81, 30,729.35 and 12,195.63 is: 16,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,268.81 : 30,729.35 = 12,195.63 : x
  2. Step 2: Convert to fraction form
    22,268.81/30,729.35 = 12,195.63/x
  3. Step 3: Cross multiply
    22,268.81x = 30,729.35 × 12,195.63
  4. Step 4: Simplify right side
    22,268.81x = 374,763,813.23
  5. Step 5: Solve for x
    x = 374,763,813.23/22,268.81
  6. Step 6: Final answer
    x = 16,829.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.