Home / 28,610.29-39,474.38-17,120.58

Finding the Fourth Proportional to 28,610.29, 39,474.38 and 17,120.58

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Solution

The fourth proportional to 28,610.29, 39,474.38 and 17,120.58 is: 23,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.29 : 39,474.38 = 17,120.58 : x
  2. Step 2: Convert to fraction form
    28,610.29/39,474.38 = 17,120.58/x
  3. Step 3: Cross multiply
    28,610.29x = 39,474.38 × 17,120.58
  4. Step 4: Simplify right side
    28,610.29x = 675,824,221.51
  5. Step 5: Solve for x
    x = 675,824,221.51/28,610.29
  6. Step 6: Final answer
    x = 23,621.72

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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.