Home / 30,979.33-46,442.87-13,435.95

Finding the Fourth Proportional to 30,979.33, 46,442.87 and 13,435.95

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Solution

The fourth proportional to 30,979.33, 46,442.87 and 13,435.95 is: 20,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.33 : 46,442.87 = 13,435.95 : x
  2. Step 2: Convert to fraction form
    30,979.33/46,442.87 = 13,435.95/x
  3. Step 3: Cross multiply
    30,979.33x = 46,442.87 × 13,435.95
  4. Step 4: Simplify right side
    30,979.33x = 624,003,938.61
  5. Step 5: Solve for x
    x = 624,003,938.61/30,979.33
  6. Step 6: Final answer
    x = 20,142.59

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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.