Home / 20,713.05-28,593.63-12,212.33

Finding the Fourth Proportional to 20,713.05, 28,593.63 and 12,212.33

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Solution

The fourth proportional to 20,713.05, 28,593.63 and 12,212.33 is: 16,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.05 : 28,593.63 = 12,212.33 : x
  2. Step 2: Convert to fraction form
    20,713.05/28,593.63 = 12,212.33/x
  3. Step 3: Cross multiply
    20,713.05x = 28,593.63 × 12,212.33
  4. Step 4: Simplify right side
    20,713.05x = 349,194,702.49
  5. Step 5: Solve for x
    x = 349,194,702.49/20,713.05
  6. Step 6: Final answer
    x = 16,858.68

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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.