Home / 35,383.98-53,006.42-20,561.78

Finding the Fourth Proportional to 35,383.98, 53,006.42 and 20,561.78

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Solution

The fourth proportional to 35,383.98, 53,006.42 and 20,561.78 is: 30,802.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,383.98 : 53,006.42 = 20,561.78 : x
  2. Step 2: Convert to fraction form
    35,383.98/53,006.42 = 20,561.78/x
  3. Step 3: Cross multiply
    35,383.98x = 53,006.42 × 20,561.78
  4. Step 4: Simplify right side
    35,383.98x = 1,089,906,346.63
  5. Step 5: Solve for x
    x = 1,089,906,346.63/35,383.98
  6. Step 6: Final answer
    x = 30,802.25

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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.