Home / 28,796.20-39,754.43-19,891.61

Finding the Fourth Proportional to 28,796.20, 39,754.43 and 19,891.61

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Solution

The fourth proportional to 28,796.20, 39,754.43 and 19,891.61 is: 27,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.20 : 39,754.43 = 19,891.61 : x
  2. Step 2: Convert to fraction form
    28,796.20/39,754.43 = 19,891.61/x
  3. Step 3: Cross multiply
    28,796.20x = 39,754.43 × 19,891.61
  4. Step 4: Simplify right side
    28,796.20x = 790,779,617.33
  5. Step 5: Solve for x
    x = 790,779,617.33/28,796.20
  6. Step 6: Final answer
    x = 27,461.25

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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.