Home / 38,223.47-57,269.19-20,705.60

Finding the Fourth Proportional to 38,223.47, 57,269.19 and 20,705.60

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Solution

The fourth proportional to 38,223.47, 57,269.19 and 20,705.60 is: 31,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,223.47 : 57,269.19 = 20,705.60 : x
  2. Step 2: Convert to fraction form
    38,223.47/57,269.19 = 20,705.60/x
  3. Step 3: Cross multiply
    38,223.47x = 57,269.19 × 20,705.60
  4. Step 4: Simplify right side
    38,223.47x = 1,185,792,940.46
  5. Step 5: Solve for x
    x = 1,185,792,940.46/38,223.47
  6. Step 6: Final answer
    x = 31,022.64

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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.