Home / 19,428.41-29,135.48-6,945.05

Finding the Fourth Proportional to 19,428.41, 29,135.48 and 6,945.05

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Solution

The fourth proportional to 19,428.41, 29,135.48 and 6,945.05 is: 10,415.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.41 : 29,135.48 = 6,945.05 : x
  2. Step 2: Convert to fraction form
    19,428.41/29,135.48 = 6,945.05/x
  3. Step 3: Cross multiply
    19,428.41x = 29,135.48 × 6,945.05
  4. Step 4: Simplify right side
    19,428.41x = 202,347,403.49
  5. Step 5: Solve for x
    x = 202,347,403.49/19,428.41
  6. Step 6: Final answer
    x = 10,415.03

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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.