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Finding the Fourth Proportional to 30,485.99, 45,733.23 and 9,427.73

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Solution

The fourth proportional to 30,485.99, 45,733.23 and 9,427.73 is: 14,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.99 : 45,733.23 = 9,427.73 : x
  2. Step 2: Convert to fraction form
    30,485.99/45,733.23 = 9,427.73/x
  3. Step 3: Cross multiply
    30,485.99x = 45,733.23 × 9,427.73
  4. Step 4: Simplify right side
    30,485.99x = 431,160,544.47
  5. Step 5: Solve for x
    x = 431,160,544.47/30,485.99
  6. Step 6: Final answer
    x = 14,142.91

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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.