Home / 21,918.72-30,227.97-14,362.28

Finding the Fourth Proportional to 21,918.72, 30,227.97 and 14,362.28

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Solution

The fourth proportional to 21,918.72, 30,227.97 and 14,362.28 is: 19,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918.72 : 30,227.97 = 14,362.28 : x
  2. Step 2: Convert to fraction form
    21,918.72/30,227.97 = 14,362.28/x
  3. Step 3: Cross multiply
    21,918.72x = 30,227.97 × 14,362.28
  4. Step 4: Simplify right side
    21,918.72x = 434,142,504.26
  5. Step 5: Solve for x
    x = 434,142,504.26/21,918.72
  6. Step 6: Final answer
    x = 19,806.93

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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.