Home / 18,204.20-27,272.70-10,389.80

Finding the Fourth Proportional to 18,204.20, 27,272.70 and 10,389.80

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Solution

The fourth proportional to 18,204.20, 27,272.70 and 10,389.80 is: 15,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204.20 : 27,272.70 = 10,389.80 : x
  2. Step 2: Convert to fraction form
    18,204.20/27,272.70 = 10,389.80/x
  3. Step 3: Cross multiply
    18,204.20x = 27,272.70 × 10,389.80
  4. Step 4: Simplify right side
    18,204.20x = 283,357,898.46
  5. Step 5: Solve for x
    x = 283,357,898.46/18,204.20
  6. Step 6: Final answer
    x = 15,565.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.