Home / 31,290.30-46,940.13-9,100.80

Finding the Fourth Proportional to 31,290.30, 46,940.13 and 9,100.80

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Solution

The fourth proportional to 31,290.30, 46,940.13 and 9,100.80 is: 13,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.30 : 46,940.13 = 9,100.80 : x
  2. Step 2: Convert to fraction form
    31,290.30/46,940.13 = 9,100.80/x
  3. Step 3: Cross multiply
    31,290.30x = 46,940.13 × 9,100.80
  4. Step 4: Simplify right side
    31,290.30x = 427,192,735.10
  5. Step 5: Solve for x
    x = 427,192,735.10/31,290.30
  6. Step 6: Final answer
    x = 13,652.56

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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.