Home / 21,956.88-30,292.21-14,407.38

Finding the Fourth Proportional to 21,956.88, 30,292.21 and 14,407.38

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Solution

The fourth proportional to 21,956.88, 30,292.21 and 14,407.38 is: 19,876.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.88 : 30,292.21 = 14,407.38 : x
  2. Step 2: Convert to fraction form
    21,956.88/30,292.21 = 14,407.38/x
  3. Step 3: Cross multiply
    21,956.88x = 30,292.21 × 14,407.38
  4. Step 4: Simplify right side
    21,956.88x = 436,431,380.51
  5. Step 5: Solve for x
    x = 436,431,380.51/21,956.88
  6. Step 6: Final answer
    x = 19,876.75

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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.