Home / 20,178.48-27,845.93-11,225.91

Finding the Fourth Proportional to 20,178.48, 27,845.93 and 11,225.91

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Solution

The fourth proportional to 20,178.48, 27,845.93 and 11,225.91 is: 15,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.48 : 27,845.93 = 11,225.91 : x
  2. Step 2: Convert to fraction form
    20,178.48/27,845.93 = 11,225.91/x
  3. Step 3: Cross multiply
    20,178.48x = 27,845.93 × 11,225.91
  4. Step 4: Simplify right side
    20,178.48x = 312,595,816.75
  5. Step 5: Solve for x
    x = 312,595,816.75/20,178.48
  6. Step 6: Final answer
    x = 15,491.54

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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.