Home / 20,609.69-28,433.27-13,447.99

Finding the Fourth Proportional to 20,609.69, 28,433.27 and 13,447.99

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Solution

The fourth proportional to 20,609.69, 28,433.27 and 13,447.99 is: 18,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.69 : 28,433.27 = 13,447.99 : x
  2. Step 2: Convert to fraction form
    20,609.69/28,433.27 = 13,447.99/x
  3. Step 3: Cross multiply
    20,609.69x = 28,433.27 × 13,447.99
  4. Step 4: Simplify right side
    20,609.69x = 382,370,121.22
  5. Step 5: Solve for x
    x = 382,370,121.22/20,609.69
  6. Step 6: Final answer
    x = 18,552.93

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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.