Home / 36,618.89-54,928.31-13,239.86

Finding the Fourth Proportional to 36,618.89, 54,928.31 and 13,239.86

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Solution

The fourth proportional to 36,618.89, 54,928.31 and 13,239.86 is: 19,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,618.89 : 54,928.31 = 13,239.86 : x
  2. Step 2: Convert to fraction form
    36,618.89/54,928.31 = 13,239.86/x
  3. Step 3: Cross multiply
    36,618.89x = 54,928.31 × 13,239.86
  4. Step 4: Simplify right side
    36,618.89x = 727,242,793.60
  5. Step 5: Solve for x
    x = 727,242,793.60/36,618.89
  6. Step 6: Final answer
    x = 19,859.77

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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.