Home / 22,056.75-30,438.32-12,120.75

Finding the Fourth Proportional to 22,056.75, 30,438.32 and 12,120.75

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Solution

The fourth proportional to 22,056.75, 30,438.32 and 12,120.75 is: 16,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,056.75 : 30,438.32 = 12,120.75 : x
  2. Step 2: Convert to fraction form
    22,056.75/30,438.32 = 12,120.75/x
  3. Step 3: Cross multiply
    22,056.75x = 30,438.32 × 12,120.75
  4. Step 4: Simplify right side
    22,056.75x = 368,935,206.54
  5. Step 5: Solve for x
    x = 368,935,206.54/22,056.75
  6. Step 6: Final answer
    x = 16,726.64

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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.