Home / 55,010.08-82,485.68-21,728.80

Finding the Fourth Proportional to 55,010.08, 82,485.68 and 21,728.80

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Solution

The fourth proportional to 55,010.08, 82,485.68 and 21,728.80 is: 32,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,010.08 : 82,485.68 = 21,728.80 : x
  2. Step 2: Convert to fraction form
    55,010.08/82,485.68 = 21,728.80/x
  3. Step 3: Cross multiply
    55,010.08x = 82,485.68 × 21,728.80
  4. Step 4: Simplify right side
    55,010.08x = 1,792,314,843.58
  5. Step 5: Solve for x
    x = 1,792,314,843.58/55,010.08
  6. Step 6: Final answer
    x = 32,581.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.