Home / 38,411.15-57,616.72-12,118.55

Finding the Fourth Proportional to 38,411.15, 57,616.72 and 12,118.55

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Solution

The fourth proportional to 38,411.15, 57,616.72 and 12,118.55 is: 18,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,411.15 : 57,616.72 = 12,118.55 : x
  2. Step 2: Convert to fraction form
    38,411.15/57,616.72 = 12,118.55/x
  3. Step 3: Cross multiply
    38,411.15x = 57,616.72 × 12,118.55
  4. Step 4: Simplify right side
    38,411.15x = 698,230,783.78
  5. Step 5: Solve for x
    x = 698,230,783.78/38,411.15
  6. Step 6: Final answer
    x = 18,177.82

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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.