Home / 21,844.06-30,143.66-13,768.36

Finding the Fourth Proportional to 21,844.06, 30,143.66 and 13,768.36

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Solution

The fourth proportional to 21,844.06, 30,143.66 and 13,768.36 is: 18,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.06 : 30,143.66 = 13,768.36 : x
  2. Step 2: Convert to fraction form
    21,844.06/30,143.66 = 13,768.36/x
  3. Step 3: Cross multiply
    21,844.06x = 30,143.66 × 13,768.36
  4. Step 4: Simplify right side
    21,844.06x = 415,028,762.60
  5. Step 5: Solve for x
    x = 415,028,762.60/21,844.06
  6. Step 6: Final answer
    x = 18,999.62

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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.