Home / 20,096.45-30,141.70-5,306.40

Finding the Fourth Proportional to 20,096.45, 30,141.70 and 5,306.40

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Solution

The fourth proportional to 20,096.45, 30,141.70 and 5,306.40 is: 7,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.45 : 30,141.70 = 5,306.40 : x
  2. Step 2: Convert to fraction form
    20,096.45/30,141.70 = 5,306.40/x
  3. Step 3: Cross multiply
    20,096.45x = 30,141.70 × 5,306.40
  4. Step 4: Simplify right side
    20,096.45x = 159,943,916.88
  5. Step 5: Solve for x
    x = 159,943,916.88/20,096.45
  6. Step 6: Final answer
    x = 7,958.81

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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.