Home / 30,084.54-41,510.43-20,397.42

Finding the Fourth Proportional to 30,084.54, 41,510.43 and 20,397.42

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Solution

The fourth proportional to 30,084.54, 41,510.43 and 20,397.42 is: 28,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,084.54 : 41,510.43 = 20,397.42 : x
  2. Step 2: Convert to fraction form
    30,084.54/41,510.43 = 20,397.42/x
  3. Step 3: Cross multiply
    30,084.54x = 41,510.43 × 20,397.42
  4. Step 4: Simplify right side
    30,084.54x = 846,705,675.09
  5. Step 5: Solve for x
    x = 846,705,675.09/30,084.54
  6. Step 6: Final answer
    x = 28,144.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.