Home / 21,956.82-30,292.95-12,395.58

Finding the Fourth Proportional to 21,956.82, 30,292.95 and 12,395.58

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Solution

The fourth proportional to 21,956.82, 30,292.95 and 12,395.58 is: 17,101.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.82 : 30,292.95 = 12,395.58 : x
  2. Step 2: Convert to fraction form
    21,956.82/30,292.95 = 12,395.58/x
  3. Step 3: Cross multiply
    21,956.82x = 30,292.95 × 12,395.58
  4. Step 4: Simplify right side
    21,956.82x = 375,498,685.16
  5. Step 5: Solve for x
    x = 375,498,685.16/21,956.82
  6. Step 6: Final answer
    x = 17,101.69

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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.