Home / 20,440.44-30,669.30-8,759.16

Finding the Fourth Proportional to 20,440.44, 30,669.30 and 8,759.16

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Solution

The fourth proportional to 20,440.44, 30,669.30 and 8,759.16 is: 13,142.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440.44 : 30,669.30 = 8,759.16 : x
  2. Step 2: Convert to fraction form
    20,440.44/30,669.30 = 8,759.16/x
  3. Step 3: Cross multiply
    20,440.44x = 30,669.30 × 8,759.16
  4. Step 4: Simplify right side
    20,440.44x = 268,637,305.79
  5. Step 5: Solve for x
    x = 268,637,305.79/20,440.44
  6. Step 6: Final answer
    x = 13,142.44

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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.