Home / 28,735.70-39,654.89-16,160.45

Finding the Fourth Proportional to 28,735.70, 39,654.89 and 16,160.45

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Solution

The fourth proportional to 28,735.70, 39,654.89 and 16,160.45 is: 22,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.70 : 39,654.89 = 16,160.45 : x
  2. Step 2: Convert to fraction form
    28,735.70/39,654.89 = 16,160.45/x
  3. Step 3: Cross multiply
    28,735.70x = 39,654.89 × 16,160.45
  4. Step 4: Simplify right side
    28,735.70x = 640,840,885.44
  5. Step 5: Solve for x
    x = 640,840,885.44/28,735.70
  6. Step 6: Final answer
    x = 22,301.21

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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.