Home / 28,893.24-39,857.90-18,838.53

Finding the Fourth Proportional to 28,893.24, 39,857.90 and 18,838.53

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Solution

The fourth proportional to 28,893.24, 39,857.90 and 18,838.53 is: 25,987.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.24 : 39,857.90 = 18,838.53 : x
  2. Step 2: Convert to fraction form
    28,893.24/39,857.90 = 18,838.53/x
  3. Step 3: Cross multiply
    28,893.24x = 39,857.90 × 18,838.53
  4. Step 4: Simplify right side
    28,893.24x = 750,864,150.69
  5. Step 5: Solve for x
    x = 750,864,150.69/28,893.24
  6. Step 6: Final answer
    x = 25,987.54

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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.