Home / 35,619.89-53,454.15-18,991.60

Finding the Fourth Proportional to 35,619.89, 53,454.15 and 18,991.60

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Solution

The fourth proportional to 35,619.89, 53,454.15 and 18,991.60 is: 28,500.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,619.89 : 53,454.15 = 18,991.60 : x
  2. Step 2: Convert to fraction form
    35,619.89/53,454.15 = 18,991.60/x
  3. Step 3: Cross multiply
    35,619.89x = 53,454.15 × 18,991.60
  4. Step 4: Simplify right side
    35,619.89x = 1,015,179,549.24
  5. Step 5: Solve for x
    x = 1,015,179,549.24/35,619.89
  6. Step 6: Final answer
    x = 28,500.36

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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.