Home / 28,028.85-38,678.36-17,418.26

Finding the Fourth Proportional to 28,028.85, 38,678.36 and 17,418.26

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Solution

The fourth proportional to 28,028.85, 38,678.36 and 17,418.26 is: 24,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.85 : 38,678.36 = 17,418.26 : x
  2. Step 2: Convert to fraction form
    28,028.85/38,678.36 = 17,418.26/x
  3. Step 3: Cross multiply
    28,028.85x = 38,678.36 × 17,418.26
  4. Step 4: Simplify right side
    28,028.85x = 673,709,450.37
  5. Step 5: Solve for x
    x = 673,709,450.37/28,028.85
  6. Step 6: Final answer
    x = 24,036.29

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Half scale
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Double scale
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Similar ratio
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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.