Home / 20,303.03-30,450.36-7,818.77

Finding the Fourth Proportional to 20,303.03, 30,450.36 and 7,818.77

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Solution

The fourth proportional to 20,303.03, 30,450.36 and 7,818.77 is: 11,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.03 : 30,450.36 = 7,818.77 : x
  2. Step 2: Convert to fraction form
    20,303.03/30,450.36 = 7,818.77/x
  3. Step 3: Cross multiply
    20,303.03x = 30,450.36 × 7,818.77
  4. Step 4: Simplify right side
    20,303.03x = 238,084,361.26
  5. Step 5: Solve for x
    x = 238,084,361.26/20,303.03
  6. Step 6: Final answer
    x = 11,726.54

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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.