Home / 20,924.01-28,876.91-11,850.99

Finding the Fourth Proportional to 20,924.01, 28,876.91 and 11,850.99

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Solution

The fourth proportional to 20,924.01, 28,876.91 and 11,850.99 is: 16,355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,924.01 : 28,876.91 = 11,850.99 : x
  2. Step 2: Convert to fraction form
    20,924.01/28,876.91 = 11,850.99/x
  3. Step 3: Cross multiply
    20,924.01x = 28,876.91 × 11,850.99
  4. Step 4: Simplify right side
    20,924.01x = 342,219,888.13
  5. Step 5: Solve for x
    x = 342,219,888.13/20,924.01
  6. Step 6: Final answer
    x = 16,355.37

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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.