Home / 20,323.07-28,046.21-12,256.68

Finding the Fourth Proportional to 20,323.07, 28,046.21 and 12,256.68

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Solution

The fourth proportional to 20,323.07, 28,046.21 and 12,256.68 is: 16,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323.07 : 28,046.21 = 12,256.68 : x
  2. Step 2: Convert to fraction form
    20,323.07/28,046.21 = 12,256.68/x
  3. Step 3: Cross multiply
    20,323.07x = 28,046.21 × 12,256.68
  4. Step 4: Simplify right side
    20,323.07x = 343,753,421.18
  5. Step 5: Solve for x
    x = 343,753,421.18/20,323.07
  6. Step 6: Final answer
    x = 16,914.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.