Home / 30,979.37-46,442.92-13,435.98

Finding the Fourth Proportional to 30,979.37, 46,442.92 and 13,435.98

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Solution

The fourth proportional to 30,979.37, 46,442.92 and 13,435.98 is: 20,142.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.37 : 46,442.92 = 13,435.98 : x
  2. Step 2: Convert to fraction form
    30,979.37/46,442.92 = 13,435.98/x
  3. Step 3: Cross multiply
    30,979.37x = 46,442.92 × 13,435.98
  4. Step 4: Simplify right side
    30,979.37x = 624,006,144.26
  5. Step 5: Solve for x
    x = 624,006,144.26/30,979.37
  6. Step 6: Final answer
    x = 20,142.64

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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.