Home / 30,740.49-46,121.67-12,975.57

Finding the Fourth Proportional to 30,740.49, 46,121.67 and 12,975.57

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Solution

The fourth proportional to 30,740.49, 46,121.67 and 12,975.57 is: 19,467.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.49 : 46,121.67 = 12,975.57 : x
  2. Step 2: Convert to fraction form
    30,740.49/46,121.67 = 12,975.57/x
  3. Step 3: Cross multiply
    30,740.49x = 46,121.67 × 12,975.57
  4. Step 4: Simplify right side
    30,740.49x = 598,454,957.60
  5. Step 5: Solve for x
    x = 598,454,957.60/30,740.49
  6. Step 6: Final answer
    x = 19,467.97

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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.