Home / 20,747.83-28,609.32-14,021.79

Finding the Fourth Proportional to 20,747.83, 28,609.32 and 14,021.79

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Solution

The fourth proportional to 20,747.83, 28,609.32 and 14,021.79 is: 19,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.83 : 28,609.32 = 14,021.79 : x
  2. Step 2: Convert to fraction form
    20,747.83/28,609.32 = 14,021.79/x
  3. Step 3: Cross multiply
    20,747.83x = 28,609.32 × 14,021.79
  4. Step 4: Simplify right side
    20,747.83x = 401,153,806.97
  5. Step 5: Solve for x
    x = 401,153,806.97/20,747.83
  6. Step 6: Final answer
    x = 19,334.74

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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.