Home / 30,979.90-46,437.36-15,163.12

Finding the Fourth Proportional to 30,979.90, 46,437.36 and 15,163.12

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Solution

The fourth proportional to 30,979.90, 46,437.36 and 15,163.12 is: 22,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.90 : 46,437.36 = 15,163.12 : x
  2. Step 2: Convert to fraction form
    30,979.90/46,437.36 = 15,163.12/x
  3. Step 3: Cross multiply
    30,979.90x = 46,437.36 × 15,163.12
  4. Step 4: Simplify right side
    30,979.90x = 704,135,262.16
  5. Step 5: Solve for x
    x = 704,135,262.16/30,979.90
  6. Step 6: Final answer
    x = 22,728.78

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1.5x scale

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.