Home / 21,982.68-30,322.62-17,955.36

Finding the Fourth Proportional to 21,982.68, 30,322.62 and 17,955.36

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Solution

The fourth proportional to 21,982.68, 30,322.62 and 17,955.36 is: 24,767.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.68 : 30,322.62 = 17,955.36 : x
  2. Step 2: Convert to fraction form
    21,982.68/30,322.62 = 17,955.36/x
  3. Step 3: Cross multiply
    21,982.68x = 30,322.62 × 17,955.36
  4. Step 4: Simplify right side
    21,982.68x = 544,453,558.24
  5. Step 5: Solve for x
    x = 544,453,558.24/21,982.68
  6. Step 6: Final answer
    x = 24,767.39

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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.