Home / 36,486.25-54,705.07-13,109.65

Finding the Fourth Proportional to 36,486.25, 54,705.07 and 13,109.65

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Solution

The fourth proportional to 36,486.25, 54,705.07 and 13,109.65 is: 19,655.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,486.25 : 54,705.07 = 13,109.65 : x
  2. Step 2: Convert to fraction form
    36,486.25/54,705.07 = 13,109.65/x
  3. Step 3: Cross multiply
    36,486.25x = 54,705.07 × 13,109.65
  4. Step 4: Simplify right side
    36,486.25x = 717,164,200.55
  5. Step 5: Solve for x
    x = 717,164,200.55/36,486.25
  6. Step 6: Final answer
    x = 19,655.74

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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.