Home / 20,705.00-28,579.34-11,758.46

Finding the Fourth Proportional to 20,705.00, 28,579.34 and 11,758.46

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Solution

The fourth proportional to 20,705.00, 28,579.34 and 11,758.46 is: 16,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.00 : 28,579.34 = 11,758.46 : x
  2. Step 2: Convert to fraction form
    20,705.00/28,579.34 = 11,758.46/x
  3. Step 3: Cross multiply
    20,705.00x = 28,579.34 × 11,758.46
  4. Step 4: Simplify right side
    20,705.00x = 336,048,912.72
  5. Step 5: Solve for x
    x = 336,048,912.72/20,705.00
  6. Step 6: Final answer
    x = 16,230.33

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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.