Home / 22,056.66-30,438.45-12,120.66

Finding the Fourth Proportional to 22,056.66, 30,438.45 and 12,120.66

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Solution

The fourth proportional to 22,056.66, 30,438.45 and 12,120.66 is: 16,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,056.66 : 30,438.45 = 12,120.66 : x
  2. Step 2: Convert to fraction form
    22,056.66/30,438.45 = 12,120.66/x
  3. Step 3: Cross multiply
    22,056.66x = 30,438.45 × 12,120.66
  4. Step 4: Simplify right side
    22,056.66x = 368,934,103.38
  5. Step 5: Solve for x
    x = 368,934,103.38/22,056.66
  6. Step 6: Final answer
    x = 16,726.65

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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.