Home / 28,685.36-39,576.56-16,107.68

Finding the Fourth Proportional to 28,685.36, 39,576.56 and 16,107.68

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Solution

The fourth proportional to 28,685.36, 39,576.56 and 16,107.68 is: 22,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.36 : 39,576.56 = 16,107.68 : x
  2. Step 2: Convert to fraction form
    28,685.36/39,576.56 = 16,107.68/x
  3. Step 3: Cross multiply
    28,685.36x = 39,576.56 × 16,107.68
  4. Step 4: Simplify right side
    28,685.36x = 637,486,563.98
  5. Step 5: Solve for x
    x = 637,486,563.98/28,685.36
  6. Step 6: Final answer
    x = 22,223.41

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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.