Home / 30,252.81-41,745.68-16,821.89

Finding the Fourth Proportional to 30,252.81, 41,745.68 and 16,821.89

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Solution

The fourth proportional to 30,252.81, 41,745.68 and 16,821.89 is: 23,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,252.81 : 41,745.68 = 16,821.89 : x
  2. Step 2: Convert to fraction form
    30,252.81/41,745.68 = 16,821.89/x
  3. Step 3: Cross multiply
    30,252.81x = 41,745.68 × 16,821.89
  4. Step 4: Simplify right side
    30,252.81x = 702,241,398.55
  5. Step 5: Solve for x
    x = 702,241,398.55/30,252.81
  6. Step 6: Final answer
    x = 23,212.44

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1.5x scale

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.