Home / 36,107.79-54,170.55-12,415.70

Finding the Fourth Proportional to 36,107.79, 54,170.55 and 12,415.70

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Solution

The fourth proportional to 36,107.79, 54,170.55 and 12,415.70 is: 18,626.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,107.79 : 54,170.55 = 12,415.70 : x
  2. Step 2: Convert to fraction form
    36,107.79/54,170.55 = 12,415.70/x
  3. Step 3: Cross multiply
    36,107.79x = 54,170.55 × 12,415.70
  4. Step 4: Simplify right side
    36,107.79x = 672,565,026.78
  5. Step 5: Solve for x
    x = 672,565,026.78/36,107.79
  6. Step 6: Final answer
    x = 18,626.59

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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.