Home / 20,585.89-28,409.97-11,634.22

Finding the Fourth Proportional to 20,585.89, 28,409.97 and 11,634.22

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Solution

The fourth proportional to 20,585.89, 28,409.97 and 11,634.22 is: 16,056.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.89 : 28,409.97 = 11,634.22 : x
  2. Step 2: Convert to fraction form
    20,585.89/28,409.97 = 11,634.22/x
  3. Step 3: Cross multiply
    20,585.89x = 28,409.97 × 11,634.22
  4. Step 4: Simplify right side
    20,585.89x = 330,527,841.17
  5. Step 5: Solve for x
    x = 330,527,841.17/20,585.89
  6. Step 6: Final answer
    x = 16,056.04

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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.