Home / 53,296.43-79,902.47-20,012.78

Finding the Fourth Proportional to 53,296.43, 79,902.47 and 20,012.78

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Solution

The fourth proportional to 53,296.43, 79,902.47 and 20,012.78 is: 30,003.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,296.43 : 79,902.47 = 20,012.78 : x
  2. Step 2: Convert to fraction form
    53,296.43/79,902.47 = 20,012.78/x
  3. Step 3: Cross multiply
    53,296.43x = 79,902.47 × 20,012.78
  4. Step 4: Simplify right side
    53,296.43x = 1,599,070,453.50
  5. Step 5: Solve for x
    x = 1,599,070,453.50/53,296.43
  6. Step 6: Final answer
    x = 30,003.33

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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.