Home / 30,283.89-41,765.19-21,204.60

Finding the Fourth Proportional to 30,283.89, 41,765.19 and 21,204.60

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Solution

The fourth proportional to 30,283.89, 41,765.19 and 21,204.60 is: 29,243.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283.89 : 41,765.19 = 21,204.60 : x
  2. Step 2: Convert to fraction form
    30,283.89/41,765.19 = 21,204.60/x
  3. Step 3: Cross multiply
    30,283.89x = 41,765.19 × 21,204.60
  4. Step 4: Simplify right side
    30,283.89x = 885,614,147.87
  5. Step 5: Solve for x
    x = 885,614,147.87/30,283.89
  6. Step 6: Final answer
    x = 29,243.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.