Home / 27,135.60-40,624.20-19,359.60

Finding the Fourth Proportional to 27,135.60, 40,624.20 and 19,359.60

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Solution

The fourth proportional to 27,135.60, 40,624.20 and 19,359.60 is: 28,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,135.60 : 40,624.20 = 19,359.60 : x
  2. Step 2: Convert to fraction form
    27,135.60/40,624.20 = 19,359.60/x
  3. Step 3: Cross multiply
    27,135.60x = 40,624.20 × 19,359.60
  4. Step 4: Simplify right side
    27,135.60x = 786,468,262.32
  5. Step 5: Solve for x
    x = 786,468,262.32/27,135.60
  6. Step 6: Final answer
    x = 28,982.90

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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.