Home / 21,945.43-30,287.48-14,398.14

Finding the Fourth Proportional to 21,945.43, 30,287.48 and 14,398.14

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Solution

The fourth proportional to 21,945.43, 30,287.48 and 14,398.14 is: 19,871.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,945.43 : 30,287.48 = 14,398.14 : x
  2. Step 2: Convert to fraction form
    21,945.43/30,287.48 = 14,398.14/x
  3. Step 3: Cross multiply
    21,945.43x = 30,287.48 × 14,398.14
  4. Step 4: Simplify right side
    21,945.43x = 436,083,305.30
  5. Step 5: Solve for x
    x = 436,083,305.30/21,945.43
  6. Step 6: Final answer
    x = 19,871.26

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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.