Home / 18,289.48-27,438.33-5,809.90

Finding the Fourth Proportional to 18,289.48, 27,438.33 and 5,809.90

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Solution

The fourth proportional to 18,289.48, 27,438.33 and 5,809.90 is: 8,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.48 : 27,438.33 = 5,809.90 : x
  2. Step 2: Convert to fraction form
    18,289.48/27,438.33 = 5,809.90/x
  3. Step 3: Cross multiply
    18,289.48x = 27,438.33 × 5,809.90
  4. Step 4: Simplify right side
    18,289.48x = 159,413,953.47
  5. Step 5: Solve for x
    x = 159,413,953.47/18,289.48
  6. Step 6: Final answer
    x = 8,716.16

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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.