Home / 30,614.75-45,922.13-12,146.75

Finding the Fourth Proportional to 30,614.75, 45,922.13 and 12,146.75

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Solution

The fourth proportional to 30,614.75, 45,922.13 and 12,146.75 is: 18,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,614.75 : 45,922.13 = 12,146.75 : x
  2. Step 2: Convert to fraction form
    30,614.75/45,922.13 = 12,146.75/x
  3. Step 3: Cross multiply
    30,614.75x = 45,922.13 × 12,146.75
  4. Step 4: Simplify right side
    30,614.75x = 557,804,632.58
  5. Step 5: Solve for x
    x = 557,804,632.58/30,614.75
  6. Step 6: Final answer
    x = 18,220.13

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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.