Home / 28,450.14-39,261.21-15,874.89

Finding the Fourth Proportional to 28,450.14, 39,261.21 and 15,874.89

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Solution

The fourth proportional to 28,450.14, 39,261.21 and 15,874.89 is: 21,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.14 : 39,261.21 = 15,874.89 : x
  2. Step 2: Convert to fraction form
    28,450.14/39,261.21 = 15,874.89/x
  3. Step 3: Cross multiply
    28,450.14x = 39,261.21 × 15,874.89
  4. Step 4: Simplify right side
    28,450.14x = 623,267,390.02
  5. Step 5: Solve for x
    x = 623,267,390.02/28,450.14
  6. Step 6: Final answer
    x = 21,907.36

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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.