Home / 28,706.05-39,596.84-20,193.15

Finding the Fourth Proportional to 28,706.05, 39,596.84 and 20,193.15

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Solution

The fourth proportional to 28,706.05, 39,596.84 and 20,193.15 is: 27,854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.05 : 39,596.84 = 20,193.15 : x
  2. Step 2: Convert to fraction form
    28,706.05/39,596.84 = 20,193.15/x
  3. Step 3: Cross multiply
    28,706.05x = 39,596.84 × 20,193.15
  4. Step 4: Simplify right side
    28,706.05x = 799,584,980.13
  5. Step 5: Solve for x
    x = 799,584,980.13/28,706.05
  6. Step 6: Final answer
    x = 27,854.23

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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.