Home / 20,071.46-30,090.78-7,584.41

Finding the Fourth Proportional to 20,071.46, 30,090.78 and 7,584.41

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Solution

The fourth proportional to 20,071.46, 30,090.78 and 7,584.41 is: 11,370.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.46 : 30,090.78 = 7,584.41 : x
  2. Step 2: Convert to fraction form
    20,071.46/30,090.78 = 7,584.41/x
  3. Step 3: Cross multiply
    20,071.46x = 30,090.78 × 7,584.41
  4. Step 4: Simplify right side
    20,071.46x = 228,220,812.74
  5. Step 5: Solve for x
    x = 228,220,812.74/20,071.46
  6. Step 6: Final answer
    x = 11,370.41

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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.