Home / 28,857.58-43,286.40-15,735.58

Finding the Fourth Proportional to 28,857.58, 43,286.40 and 15,735.58

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Solution

The fourth proportional to 28,857.58, 43,286.40 and 15,735.58 is: 23,603.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,857.58 : 43,286.40 = 15,735.58 : x
  2. Step 2: Convert to fraction form
    28,857.58/43,286.40 = 15,735.58/x
  3. Step 3: Cross multiply
    28,857.58x = 43,286.40 × 15,735.58
  4. Step 4: Simplify right side
    28,857.58x = 681,136,610.11
  5. Step 5: Solve for x
    x = 681,136,610.11/28,857.58
  6. Step 6: Final answer
    x = 23,603.39

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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.