Home / 28,042.49-42,069.81-8,322.44

Finding the Fourth Proportional to 28,042.49, 42,069.81 and 8,322.44

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Solution

The fourth proportional to 28,042.49, 42,069.81 and 8,322.44 is: 12,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.49 : 42,069.81 = 8,322.44 : x
  2. Step 2: Convert to fraction form
    28,042.49/42,069.81 = 8,322.44/x
  3. Step 3: Cross multiply
    28,042.49x = 42,069.81 × 8,322.44
  4. Step 4: Simplify right side
    28,042.49x = 350,123,259.19
  5. Step 5: Solve for x
    x = 350,123,259.19/28,042.49
  6. Step 6: Final answer
    x = 12,485.46

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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.