Home / 28,221.70-42,329.58-11,583.49

Finding the Fourth Proportional to 28,221.70, 42,329.58 and 11,583.49

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Solution

The fourth proportional to 28,221.70, 42,329.58 and 11,583.49 is: 17,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.70 : 42,329.58 = 11,583.49 : x
  2. Step 2: Convert to fraction form
    28,221.70/42,329.58 = 11,583.49/x
  3. Step 3: Cross multiply
    28,221.70x = 42,329.58 × 11,583.49
  4. Step 4: Simplify right side
    28,221.70x = 490,324,266.63
  5. Step 5: Solve for x
    x = 490,324,266.63/28,221.70
  6. Step 6: Final answer
    x = 17,374.02

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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.