Home / 29,003.21-40,012.43-18,928.02

Finding the Fourth Proportional to 29,003.21, 40,012.43 and 18,928.02

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Solution

The fourth proportional to 29,003.21, 40,012.43 and 18,928.02 is: 26,112.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,003.21 : 40,012.43 = 18,928.02 : x
  2. Step 2: Convert to fraction form
    29,003.21/40,012.43 = 18,928.02/x
  3. Step 3: Cross multiply
    29,003.21x = 40,012.43 × 18,928.02
  4. Step 4: Simplify right side
    29,003.21x = 757,356,075.29
  5. Step 5: Solve for x
    x = 757,356,075.29/29,003.21
  6. Step 6: Final answer
    x = 26,112.84

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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.