Home / 28,365.97-39,142.64-16,722.33

Finding the Fourth Proportional to 28,365.97, 39,142.64 and 16,722.33

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Solution

The fourth proportional to 28,365.97, 39,142.64 and 16,722.33 is: 23,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.97 : 39,142.64 = 16,722.33 : x
  2. Step 2: Convert to fraction form
    28,365.97/39,142.64 = 16,722.33/x
  3. Step 3: Cross multiply
    28,365.97x = 39,142.64 × 16,722.33
  4. Step 4: Simplify right side
    28,365.97x = 654,556,143.15
  5. Step 5: Solve for x
    x = 654,556,143.15/28,365.97
  6. Step 6: Final answer
    x = 23,075.40

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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.