Home / 28,618.21-39,501.35-17,285.90

Finding the Fourth Proportional to 28,618.21, 39,501.35 and 17,285.90

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Solution

The fourth proportional to 28,618.21, 39,501.35 and 17,285.90 is: 23,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.21 : 39,501.35 = 17,285.90 : x
  2. Step 2: Convert to fraction form
    28,618.21/39,501.35 = 17,285.90/x
  3. Step 3: Cross multiply
    28,618.21x = 39,501.35 × 17,285.90
  4. Step 4: Simplify right side
    28,618.21x = 682,816,385.97
  5. Step 5: Solve for x
    x = 682,816,385.97/28,618.21
  6. Step 6: Final answer
    x = 23,859.51

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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.