Home / 20,738.04-31,111.92-9,054.60

Finding the Fourth Proportional to 20,738.04, 31,111.92 and 9,054.60

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Solution

The fourth proportional to 20,738.04, 31,111.92 and 9,054.60 is: 13,584.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.04 : 31,111.92 = 9,054.60 : x
  2. Step 2: Convert to fraction form
    20,738.04/31,111.92 = 9,054.60/x
  3. Step 3: Cross multiply
    20,738.04x = 31,111.92 × 9,054.60
  4. Step 4: Simplify right side
    20,738.04x = 281,705,990.83
  5. Step 5: Solve for x
    x = 281,705,990.83/20,738.04
  6. Step 6: Final answer
    x = 13,584.02

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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.