Home / 20,322.07-28,044.83-12,255.68

Finding the Fourth Proportional to 20,322.07, 28,044.83 and 12,255.68

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Solution

The fourth proportional to 20,322.07, 28,044.83 and 12,255.68 is: 16,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.07 : 28,044.83 = 12,255.68 : x
  2. Step 2: Convert to fraction form
    20,322.07/28,044.83 = 12,255.68/x
  3. Step 3: Cross multiply
    20,322.07x = 28,044.83 × 12,255.68
  4. Step 4: Simplify right side
    20,322.07x = 343,708,562.89
  5. Step 5: Solve for x
    x = 343,708,562.89/20,322.07
  6. Step 6: Final answer
    x = 16,913.07

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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.