Home / 28,577.00-39,435.11-15,829.44

Finding the Fourth Proportional to 28,577.00, 39,435.11 and 15,829.44

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Solution

The fourth proportional to 28,577.00, 39,435.11 and 15,829.44 is: 21,843.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.00 : 39,435.11 = 15,829.44 : x
  2. Step 2: Convert to fraction form
    28,577.00/39,435.11 = 15,829.44/x
  3. Step 3: Cross multiply
    28,577.00x = 39,435.11 × 15,829.44
  4. Step 4: Simplify right side
    28,577.00x = 624,235,656.64
  5. Step 5: Solve for x
    x = 624,235,656.64/28,577.00
  6. Step 6: Final answer
    x = 21,843.99

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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.