Home / 30,940.55-46,416.09-12,210.79

Finding the Fourth Proportional to 30,940.55, 46,416.09 and 12,210.79

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Solution

The fourth proportional to 30,940.55, 46,416.09 and 12,210.79 is: 18,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.55 : 46,416.09 = 12,210.79 : x
  2. Step 2: Convert to fraction form
    30,940.55/46,416.09 = 12,210.79/x
  3. Step 3: Cross multiply
    30,940.55x = 46,416.09 × 12,210.79
  4. Step 4: Simplify right side
    30,940.55x = 566,777,127.61
  5. Step 5: Solve for x
    x = 566,777,127.61/30,940.55
  6. Step 6: Final answer
    x = 18,318.26

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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.