Home / 28,018.08-38,664.72-16,083.36

Finding the Fourth Proportional to 28,018.08, 38,664.72 and 16,083.36

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Solution

The fourth proportional to 28,018.08, 38,664.72 and 16,083.36 is: 22,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.08 : 38,664.72 = 16,083.36 : x
  2. Step 2: Convert to fraction form
    28,018.08/38,664.72 = 16,083.36/x
  3. Step 3: Cross multiply
    28,018.08x = 38,664.72 × 16,083.36
  4. Step 4: Simplify right side
    28,018.08x = 621,858,611.06
  5. Step 5: Solve for x
    x = 621,858,611.06/28,018.08
  6. Step 6: Final answer
    x = 22,194.90

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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.