Home / 30,911.88-46,362.63-8,720.06

Finding the Fourth Proportional to 30,911.88, 46,362.63 and 8,720.06

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Solution

The fourth proportional to 30,911.88, 46,362.63 and 8,720.06 is: 13,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.88 : 46,362.63 = 8,720.06 : x
  2. Step 2: Convert to fraction form
    30,911.88/46,362.63 = 8,720.06/x
  3. Step 3: Cross multiply
    30,911.88x = 46,362.63 × 8,720.06
  4. Step 4: Simplify right side
    30,911.88x = 404,284,667.19
  5. Step 5: Solve for x
    x = 404,284,667.19/30,911.88
  6. Step 6: Final answer
    x = 13,078.62

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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.