Home / 20,735.55-28,635.44-13,196.07

Finding the Fourth Proportional to 20,735.55, 28,635.44 and 13,196.07

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Solution

The fourth proportional to 20,735.55, 28,635.44 and 13,196.07 is: 18,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.55 : 28,635.44 = 13,196.07 : x
  2. Step 2: Convert to fraction form
    20,735.55/28,635.44 = 13,196.07/x
  3. Step 3: Cross multiply
    20,735.55x = 28,635.44 × 13,196.07
  4. Step 4: Simplify right side
    20,735.55x = 377,875,204.74
  5. Step 5: Solve for x
    x = 377,875,204.74/20,735.55
  6. Step 6: Final answer
    x = 18,223.54

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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.