Home / 21,956.47-30,292.45-12,395.23

Finding the Fourth Proportional to 21,956.47, 30,292.45 and 12,395.23

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Solution

The fourth proportional to 21,956.47, 30,292.45 and 12,395.23 is: 17,101.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.47 : 30,292.45 = 12,395.23 : x
  2. Step 2: Convert to fraction form
    21,956.47/30,292.45 = 12,395.23/x
  3. Step 3: Cross multiply
    21,956.47x = 30,292.45 × 12,395.23
  4. Step 4: Simplify right side
    21,956.47x = 375,481,778.29
  5. Step 5: Solve for x
    x = 375,481,778.29/21,956.47
  6. Step 6: Final answer
    x = 17,101.19

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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.