Home / 21,974.70-30,336.75-13,032.30

Finding the Fourth Proportional to 21,974.70, 30,336.75 and 13,032.30

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Solution

The fourth proportional to 21,974.70, 30,336.75 and 13,032.30 is: 17,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.70 : 30,336.75 = 13,032.30 : x
  2. Step 2: Convert to fraction form
    21,974.70/30,336.75 = 13,032.30/x
  3. Step 3: Cross multiply
    21,974.70x = 30,336.75 × 13,032.30
  4. Step 4: Simplify right side
    21,974.70x = 395,357,627.03
  5. Step 5: Solve for x
    x = 395,357,627.03/21,974.70
  6. Step 6: Final answer
    x = 17,991.49

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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.