Home / 20,477.06-30,697.31-7,994.18

Finding the Fourth Proportional to 20,477.06, 30,697.31 and 7,994.18

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Solution

The fourth proportional to 20,477.06, 30,697.31 and 7,994.18 is: 11,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.06 : 30,697.31 = 7,994.18 : x
  2. Step 2: Convert to fraction form
    20,477.06/30,697.31 = 7,994.18/x
  3. Step 3: Cross multiply
    20,477.06x = 30,697.31 × 7,994.18
  4. Step 4: Simplify right side
    20,477.06x = 245,399,781.68
  5. Step 5: Solve for x
    x = 245,399,781.68/20,477.06
  6. Step 6: Final answer
    x = 11,984.13

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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.