Home / 34,128.48-47,107.44-21,561.60

Finding the Fourth Proportional to 34,128.48, 47,107.44 and 21,561.60

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Solution

The fourth proportional to 34,128.48, 47,107.44 and 21,561.60 is: 29,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,128.48 : 47,107.44 = 21,561.60 : x
  2. Step 2: Convert to fraction form
    34,128.48/47,107.44 = 21,561.60/x
  3. Step 3: Cross multiply
    34,128.48x = 47,107.44 × 21,561.60
  4. Step 4: Simplify right side
    34,128.48x = 1,015,711,778.30
  5. Step 5: Solve for x
    x = 1,015,711,778.30/34,128.48
  6. Step 6: Final answer
    x = 29,761.41

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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.