Home / 20,835.23-31,230.97-14,988.65

Finding the Fourth Proportional to 20,835.23, 31,230.97 and 14,988.65

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Solution

The fourth proportional to 20,835.23, 31,230.97 and 14,988.65 is: 22,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.23 : 31,230.97 = 14,988.65 : x
  2. Step 2: Convert to fraction form
    20,835.23/31,230.97 = 14,988.65/x
  3. Step 3: Cross multiply
    20,835.23x = 31,230.97 × 14,988.65
  4. Step 4: Simplify right side
    20,835.23x = 468,109,884.86
  5. Step 5: Solve for x
    x = 468,109,884.86/20,835.23
  6. Step 6: Final answer
    x = 22,467.23

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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.