Home / 28,619.88-39,490.38-17,286.36

Finding the Fourth Proportional to 28,619.88, 39,490.38 and 17,286.36

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Solution

The fourth proportional to 28,619.88, 39,490.38 and 17,286.36 is: 23,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.88 : 39,490.38 = 17,286.36 : x
  2. Step 2: Convert to fraction form
    28,619.88/39,490.38 = 17,286.36/x
  3. Step 3: Cross multiply
    28,619.88x = 39,490.38 × 17,286.36
  4. Step 4: Simplify right side
    28,619.88x = 682,644,925.22
  5. Step 5: Solve for x
    x = 682,644,925.22/28,619.88
  6. Step 6: Final answer
    x = 23,852.12

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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.