Home / 35,942.40-53,945.60-21,132.80

Finding the Fourth Proportional to 35,942.40, 53,945.60 and 21,132.80

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Solution

The fourth proportional to 35,942.40, 53,945.60 and 21,132.80 is: 31,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,942.40 : 53,945.60 = 21,132.80 : x
  2. Step 2: Convert to fraction form
    35,942.40/53,945.60 = 21,132.80/x
  3. Step 3: Cross multiply
    35,942.40x = 53,945.60 × 21,132.80
  4. Step 4: Simplify right side
    35,942.40x = 1,140,021,575.68
  5. Step 5: Solve for x
    x = 1,140,021,575.68/35,942.40
  6. Step 6: Final answer
    x = 31,718.01

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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.