Home / 39,620.21-59,416.16-18,556.65

Finding the Fourth Proportional to 39,620.21, 59,416.16 and 18,556.65

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Solution

The fourth proportional to 39,620.21, 59,416.16 and 18,556.65 is: 27,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,620.21 : 59,416.16 = 18,556.65 : x
  2. Step 2: Convert to fraction form
    39,620.21/59,416.16 = 18,556.65/x
  3. Step 3: Cross multiply
    39,620.21x = 59,416.16 × 18,556.65
  4. Step 4: Simplify right side
    39,620.21x = 1,102,564,792.68
  5. Step 5: Solve for x
    x = 1,102,564,792.68/39,620.21
  6. Step 6: Final answer
    x = 27,828.35

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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.