Home / 28,916.44-39,904.36-15,668.44

Finding the Fourth Proportional to 28,916.44, 39,904.36 and 15,668.44

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Solution

The fourth proportional to 28,916.44, 39,904.36 and 15,668.44 is: 21,622.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.44 : 39,904.36 = 15,668.44 : x
  2. Step 2: Convert to fraction form
    28,916.44/39,904.36 = 15,668.44/x
  3. Step 3: Cross multiply
    28,916.44x = 39,904.36 × 15,668.44
  4. Step 4: Simplify right side
    28,916.44x = 625,239,070.40
  5. Step 5: Solve for x
    x = 625,239,070.40/28,916.44
  6. Step 6: Final answer
    x = 21,622.27

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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.