Home / 20,628.10-28,466.01-11,675.80

Finding the Fourth Proportional to 20,628.10, 28,466.01 and 11,675.80

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Solution

The fourth proportional to 20,628.10, 28,466.01 and 11,675.80 is: 16,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.10 : 28,466.01 = 11,675.80 : x
  2. Step 2: Convert to fraction form
    20,628.10/28,466.01 = 11,675.80/x
  3. Step 3: Cross multiply
    20,628.10x = 28,466.01 × 11,675.80
  4. Step 4: Simplify right side
    20,628.10x = 332,363,439.56
  5. Step 5: Solve for x
    x = 332,363,439.56/20,628.10
  6. Step 6: Final answer
    x = 16,112.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.