Home / 21,304.42-29,394.19-13,751.07

Finding the Fourth Proportional to 21,304.42, 29,394.19 and 13,751.07

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Solution

The fourth proportional to 21,304.42, 29,394.19 and 13,751.07 is: 18,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.42 : 29,394.19 = 13,751.07 : x
  2. Step 2: Convert to fraction form
    21,304.42/29,394.19 = 13,751.07/x
  3. Step 3: Cross multiply
    21,304.42x = 29,394.19 × 13,751.07
  4. Step 4: Simplify right side
    21,304.42x = 404,201,471.24
  5. Step 5: Solve for x
    x = 404,201,471.24/21,304.42
  6. Step 6: Final answer
    x = 18,972.66

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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.