Home / 21,016.87-31,504.04-13,626.03

Finding the Fourth Proportional to 21,016.87, 31,504.04 and 13,626.03

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Solution

The fourth proportional to 21,016.87, 31,504.04 and 13,626.03 is: 20,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.87 : 31,504.04 = 13,626.03 : x
  2. Step 2: Convert to fraction form
    21,016.87/31,504.04 = 13,626.03/x
  3. Step 3: Cross multiply
    21,016.87x = 31,504.04 × 13,626.03
  4. Step 4: Simplify right side
    21,016.87x = 429,274,994.16
  5. Step 5: Solve for x
    x = 429,274,994.16/21,016.87
  6. Step 6: Final answer
    x = 20,425.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.