Home / 20,326.86-28,035.27-13,610.34

Finding the Fourth Proportional to 20,326.86, 28,035.27 and 13,610.34

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Solution

The fourth proportional to 20,326.86, 28,035.27 and 13,610.34 is: 18,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.86 : 28,035.27 = 13,610.34 : x
  2. Step 2: Convert to fraction form
    20,326.86/28,035.27 = 13,610.34/x
  3. Step 3: Cross multiply
    20,326.86x = 28,035.27 × 13,610.34
  4. Step 4: Simplify right side
    20,326.86x = 381,569,556.69
  5. Step 5: Solve for x
    x = 381,569,556.69/20,326.86
  6. Step 6: Final answer
    x = 18,771.69

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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.