Home / 28,353.15-39,131.64-17,028.87

Finding the Fourth Proportional to 28,353.15, 39,131.64 and 17,028.87

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Solution

The fourth proportional to 28,353.15, 39,131.64 and 17,028.87 is: 23,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,353.15 : 39,131.64 = 17,028.87 : x
  2. Step 2: Convert to fraction form
    28,353.15/39,131.64 = 17,028.87/x
  3. Step 3: Cross multiply
    28,353.15x = 39,131.64 × 17,028.87
  4. Step 4: Simplify right side
    28,353.15x = 666,367,610.45
  5. Step 5: Solve for x
    x = 666,367,610.45/28,353.15
  6. Step 6: Final answer
    x = 23,502.42

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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.