Home / 28,548.22-39,394.07-15,801.42

Finding the Fourth Proportional to 28,548.22, 39,394.07 and 15,801.42

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Solution

The fourth proportional to 28,548.22, 39,394.07 and 15,801.42 is: 21,804.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.22 : 39,394.07 = 15,801.42 : x
  2. Step 2: Convert to fraction form
    28,548.22/39,394.07 = 15,801.42/x
  3. Step 3: Cross multiply
    28,548.22x = 39,394.07 × 15,801.42
  4. Step 4: Simplify right side
    28,548.22x = 622,482,137.36
  5. Step 5: Solve for x
    x = 622,482,137.36/28,548.22
  6. Step 6: Final answer
    x = 21,804.59

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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.