Home / 22,177.60-30,604.64-12,745.92

Finding the Fourth Proportional to 22,177.60, 30,604.64 and 12,745.92

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Solution

The fourth proportional to 22,177.60, 30,604.64 and 12,745.92 is: 17,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,177.60 : 30,604.64 = 12,745.92 : x
  2. Step 2: Convert to fraction form
    22,177.60/30,604.64 = 12,745.92/x
  3. Step 3: Cross multiply
    22,177.60x = 30,604.64 × 12,745.92
  4. Step 4: Simplify right side
    22,177.60x = 390,084,293.07
  5. Step 5: Solve for x
    x = 390,084,293.07/22,177.60
  6. Step 6: Final answer
    x = 17,589.11

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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.