Home / 20,178.60-27,846.09-11,225.94

Finding the Fourth Proportional to 20,178.60, 27,846.09 and 11,225.94

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Solution

The fourth proportional to 20,178.60, 27,846.09 and 11,225.94 is: 15,491.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.60 : 27,846.09 = 11,225.94 : x
  2. Step 2: Convert to fraction form
    20,178.60/27,846.09 = 11,225.94/x
  3. Step 3: Cross multiply
    20,178.60x = 27,846.09 × 11,225.94
  4. Step 4: Simplify right side
    20,178.60x = 312,598,535.57
  5. Step 5: Solve for x
    x = 312,598,535.57/20,178.60
  6. Step 6: Final answer
    x = 15,491.59

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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.