Home / 20,697.66-31,051.72-5,906.63

Finding the Fourth Proportional to 20,697.66, 31,051.72 and 5,906.63

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Solution

The fourth proportional to 20,697.66, 31,051.72 and 5,906.63 is: 8,861.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.66 : 31,051.72 = 5,906.63 : x
  2. Step 2: Convert to fraction form
    20,697.66/31,051.72 = 5,906.63/x
  3. Step 3: Cross multiply
    20,697.66x = 31,051.72 × 5,906.63
  4. Step 4: Simplify right side
    20,697.66x = 183,411,020.90
  5. Step 5: Solve for x
    x = 183,411,020.90/20,697.66
  6. Step 6: Final answer
    x = 8,861.44

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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.