Home / 20,889.96-31,328.72-6,094.90

Finding the Fourth Proportional to 20,889.96, 31,328.72 and 6,094.90

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Solution

The fourth proportional to 20,889.96, 31,328.72 and 6,094.90 is: 9,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,889.96 : 31,328.72 = 6,094.90 : x
  2. Step 2: Convert to fraction form
    20,889.96/31,328.72 = 6,094.90/x
  3. Step 3: Cross multiply
    20,889.96x = 31,328.72 × 6,094.90
  4. Step 4: Simplify right side
    20,889.96x = 190,945,415.53
  5. Step 5: Solve for x
    x = 190,945,415.53/20,889.96
  6. Step 6: Final answer
    x = 9,140.54

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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.