Home / 20,892.24-28,832.04-11,461.08

Finding the Fourth Proportional to 20,892.24, 28,832.04 and 11,461.08

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Solution

The fourth proportional to 20,892.24, 28,832.04 and 11,461.08 is: 15,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.24 : 28,832.04 = 11,461.08 : x
  2. Step 2: Convert to fraction form
    20,892.24/28,832.04 = 11,461.08/x
  3. Step 3: Cross multiply
    20,892.24x = 28,832.04 × 11,461.08
  4. Step 4: Simplify right side
    20,892.24x = 330,446,317.00
  5. Step 5: Solve for x
    x = 330,446,317.00/20,892.24
  6. Step 6: Final answer
    x = 15,816.70

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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.