Home / 20,890.96-31,330.22-6,095.90

Finding the Fourth Proportional to 20,890.96, 31,330.22 and 6,095.90

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Solution

The fourth proportional to 20,890.96, 31,330.22 and 6,095.90 is: 9,142.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890.96 : 31,330.22 = 6,095.90 : x
  2. Step 2: Convert to fraction form
    20,890.96/31,330.22 = 6,095.90/x
  3. Step 3: Cross multiply
    20,890.96x = 31,330.22 × 6,095.90
  4. Step 4: Simplify right side
    20,890.96x = 190,985,888.10
  5. Step 5: Solve for x
    x = 190,985,888.10/20,890.96
  6. Step 6: Final answer
    x = 9,142.04

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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.