Home / 29,945.70-41,293.80-20,881.60

Finding the Fourth Proportional to 29,945.70, 41,293.80 and 20,881.60

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Solution

The fourth proportional to 29,945.70, 41,293.80 and 20,881.60 is: 28,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,945.70 : 41,293.80 = 20,881.60 : x
  2. Step 2: Convert to fraction form
    29,945.70/41,293.80 = 20,881.60/x
  3. Step 3: Cross multiply
    29,945.70x = 41,293.80 × 20,881.60
  4. Step 4: Simplify right side
    29,945.70x = 862,280,510.85
  5. Step 5: Solve for x
    x = 862,280,510.85/29,945.70
  6. Step 6: Final answer
    x = 28,794.80

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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.