Home / 20,622.32-30,933.48-11,851.64

Finding the Fourth Proportional to 20,622.32, 30,933.48 and 11,851.64

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Solution

The fourth proportional to 20,622.32, 30,933.48 and 11,851.64 is: 17,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,622.32 : 30,933.48 = 11,851.64 : x
  2. Step 2: Convert to fraction form
    20,622.32/30,933.48 = 11,851.64/x
  3. Step 3: Cross multiply
    20,622.32x = 30,933.48 × 11,851.64
  4. Step 4: Simplify right side
    20,622.32x = 366,612,314.24
  5. Step 5: Solve for x
    x = 366,612,314.24/20,622.32
  6. Step 6: Final answer
    x = 17,777.46

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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.