Home / 18,907.36-28,333.19-16,831.33

Finding the Fourth Proportional to 18,907.36, 28,333.19 and 16,831.33

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Solution

The fourth proportional to 18,907.36, 28,333.19 and 16,831.33 is: 25,222.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.36 : 28,333.19 = 16,831.33 : x
  2. Step 2: Convert to fraction form
    18,907.36/28,333.19 = 16,831.33/x
  3. Step 3: Cross multiply
    18,907.36x = 28,333.19 × 16,831.33
  4. Step 4: Simplify right side
    18,907.36x = 476,885,242.09
  5. Step 5: Solve for x
    x = 476,885,242.09/18,907.36
  6. Step 6: Final answer
    x = 25,222.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.