Home / 30,940.28-46,410.60-8,753.12

Finding the Fourth Proportional to 30,940.28, 46,410.60 and 8,753.12

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Solution

The fourth proportional to 30,940.28, 46,410.60 and 8,753.12 is: 13,129.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.28 : 46,410.60 = 8,753.12 : x
  2. Step 2: Convert to fraction form
    30,940.28/46,410.60 = 8,753.12/x
  3. Step 3: Cross multiply
    30,940.28x = 46,410.60 × 8,753.12
  4. Step 4: Simplify right side
    30,940.28x = 406,237,551.07
  5. Step 5: Solve for x
    x = 406,237,551.07/30,940.28
  6. Step 6: Final answer
    x = 13,129.73

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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.