Home / 20,861.61-31,295.46-6,068.61

Finding the Fourth Proportional to 20,861.61, 31,295.46 and 6,068.61

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Solution

The fourth proportional to 20,861.61, 31,295.46 and 6,068.61 is: 9,103.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861.61 : 31,295.46 = 6,068.61 : x
  2. Step 2: Convert to fraction form
    20,861.61/31,295.46 = 6,068.61/x
  3. Step 3: Cross multiply
    20,861.61x = 31,295.46 × 6,068.61
  4. Step 4: Simplify right side
    20,861.61x = 189,919,941.51
  5. Step 5: Solve for x
    x = 189,919,941.51/20,861.61
  6. Step 6: Final answer
    x = 9,103.80

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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.