Home / 36,134.40-54,188.12-12,435.32

Finding the Fourth Proportional to 36,134.40, 54,188.12 and 12,435.32

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Solution

The fourth proportional to 36,134.40, 54,188.12 and 12,435.32 is: 18,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,134.40 : 54,188.12 = 12,435.32 : x
  2. Step 2: Convert to fraction form
    36,134.40/54,188.12 = 12,435.32/x
  3. Step 3: Cross multiply
    36,134.40x = 54,188.12 × 12,435.32
  4. Step 4: Simplify right side
    36,134.40x = 673,846,279.28
  5. Step 5: Solve for x
    x = 673,846,279.28/36,134.40
  6. Step 6: Final answer
    x = 18,648.33

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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.