Home / 32,778.60-49,181.34-18,939.24

Finding the Fourth Proportional to 32,778.60, 49,181.34 and 18,939.24

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Solution

The fourth proportional to 32,778.60, 49,181.34 and 18,939.24 is: 28,416.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,778.60 : 49,181.34 = 18,939.24 : x
  2. Step 2: Convert to fraction form
    32,778.60/49,181.34 = 18,939.24/x
  3. Step 3: Cross multiply
    32,778.60x = 49,181.34 × 18,939.24
  4. Step 4: Simplify right side
    32,778.60x = 931,457,201.78
  5. Step 5: Solve for x
    x = 931,457,201.78/32,778.60
  6. Step 6: Final answer
    x = 28,416.63

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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.