Home / 20,583.09-28,383.84-18,307.24

Finding the Fourth Proportional to 20,583.09, 28,383.84 and 18,307.24

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Solution

The fourth proportional to 20,583.09, 28,383.84 and 18,307.24 is: 25,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.09 : 28,383.84 = 18,307.24 : x
  2. Step 2: Convert to fraction form
    20,583.09/28,383.84 = 18,307.24/x
  3. Step 3: Cross multiply
    20,583.09x = 28,383.84 × 18,307.24
  4. Step 4: Simplify right side
    20,583.09x = 519,629,831.36
  5. Step 5: Solve for x
    x = 519,629,831.36/20,583.09
  6. Step 6: Final answer
    x = 25,245.48

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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.