Home / 21,850.48-30,194.52-18,618.52

Finding the Fourth Proportional to 21,850.48, 30,194.52 and 18,618.52

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Solution

The fourth proportional to 21,850.48, 30,194.52 and 18,618.52 is: 25,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.48 : 30,194.52 = 18,618.52 : x
  2. Step 2: Convert to fraction form
    21,850.48/30,194.52 = 18,618.52/x
  3. Step 3: Cross multiply
    21,850.48x = 30,194.52 × 18,618.52
  4. Step 4: Simplify right side
    21,850.48x = 562,177,274.51
  5. Step 5: Solve for x
    x = 562,177,274.51/21,850.48
  6. Step 6: Final answer
    x = 25,728.37

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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.