Home / 38,991.78-58,503.06-20,283.55

Finding the Fourth Proportional to 38,991.78, 58,503.06 and 20,283.55

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Solution

The fourth proportional to 38,991.78, 58,503.06 and 20,283.55 is: 30,433.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,991.78 : 58,503.06 = 20,283.55 : x
  2. Step 2: Convert to fraction form
    38,991.78/58,503.06 = 20,283.55/x
  3. Step 3: Cross multiply
    38,991.78x = 58,503.06 × 20,283.55
  4. Step 4: Simplify right side
    38,991.78x = 1,186,649,596.41
  5. Step 5: Solve for x
    x = 1,186,649,596.41/38,991.78
  6. Step 6: Final answer
    x = 30,433.33

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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.