Home / 30,979.05-46,468.72-7,605.48

Finding the Fourth Proportional to 30,979.05, 46,468.72 and 7,605.48

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Solution

The fourth proportional to 30,979.05, 46,468.72 and 7,605.48 is: 11,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.05 : 46,468.72 = 7,605.48 : x
  2. Step 2: Convert to fraction form
    30,979.05/46,468.72 = 7,605.48/x
  3. Step 3: Cross multiply
    30,979.05x = 46,468.72 × 7,605.48
  4. Step 4: Simplify right side
    30,979.05x = 353,416,920.59
  5. Step 5: Solve for x
    x = 353,416,920.59/30,979.05
  6. Step 6: Final answer
    x = 11,408.26

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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.