Home / 30,811.06-45,974.57-28,930.24

Finding the Fourth Proportional to 30,811.06, 45,974.57 and 28,930.24

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Solution

The fourth proportional to 30,811.06, 45,974.57 and 28,930.24 is: 43,168.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,811.06 : 45,974.57 = 28,930.24 : x
  2. Step 2: Convert to fraction form
    30,811.06/45,974.57 = 28,930.24/x
  3. Step 3: Cross multiply
    30,811.06x = 45,974.57 × 28,930.24
  4. Step 4: Simplify right side
    30,811.06x = 1,330,055,344.00
  5. Step 5: Solve for x
    x = 1,330,055,344.00/30,811.06
  6. Step 6: Final answer
    x = 43,168.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.