Home / 20,324.12-28,035.00-13,425.33

Finding the Fourth Proportional to 20,324.12, 28,035.00 and 13,425.33

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Solution

The fourth proportional to 20,324.12, 28,035.00 and 13,425.33 is: 18,518.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.12 : 28,035.00 = 13,425.33 : x
  2. Step 2: Convert to fraction form
    20,324.12/28,035.00 = 13,425.33/x
  3. Step 3: Cross multiply
    20,324.12x = 28,035.00 × 13,425.33
  4. Step 4: Simplify right side
    20,324.12x = 376,379,071.76
  5. Step 5: Solve for x
    x = 376,379,071.76/20,324.12
  6. Step 6: Final answer
    x = 18,518.84

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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.