Home / 36,415.86-54,722.61-19,788.18

Finding the Fourth Proportional to 36,415.86, 54,722.61 and 19,788.18

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Solution

The fourth proportional to 36,415.86, 54,722.61 and 19,788.18 is: 29,735.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,415.86 : 54,722.61 = 19,788.18 : x
  2. Step 2: Convert to fraction form
    36,415.86/54,722.61 = 19,788.18/x
  3. Step 3: Cross multiply
    36,415.86x = 54,722.61 × 19,788.18
  4. Step 4: Simplify right side
    36,415.86x = 1,082,860,856.75
  5. Step 5: Solve for x
    x = 1,082,860,856.75/36,415.86
  6. Step 6: Final answer
    x = 29,735.97

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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.