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Finding the Fourth Proportional to 20,466.69, 30,701.85 and 8,777.17

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Solution

The fourth proportional to 20,466.69, 30,701.85 and 8,777.17 is: 13,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,466.69 : 30,701.85 = 8,777.17 : x
  2. Step 2: Convert to fraction form
    20,466.69/30,701.85 = 8,777.17/x
  3. Step 3: Cross multiply
    20,466.69x = 30,701.85 × 8,777.17
  4. Step 4: Simplify right side
    20,466.69x = 269,475,356.76
  5. Step 5: Solve for x
    x = 269,475,356.76/20,466.69
  6. Step 6: Final answer
    x = 13,166.54

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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.