Home / 20,673.06-28,517.42-13,106.04

Finding the Fourth Proportional to 20,673.06, 28,517.42 and 13,106.04

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Solution

The fourth proportional to 20,673.06, 28,517.42 and 13,106.04 is: 18,079.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.06 : 28,517.42 = 13,106.04 : x
  2. Step 2: Convert to fraction form
    20,673.06/28,517.42 = 13,106.04/x
  3. Step 3: Cross multiply
    20,673.06x = 28,517.42 × 13,106.04
  4. Step 4: Simplify right side
    20,673.06x = 373,750,447.22
  5. Step 5: Solve for x
    x = 373,750,447.22/20,673.06
  6. Step 6: Final answer
    x = 18,079.11

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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.