Home / 20,450.74-30,654.09-9,898.46

Finding the Fourth Proportional to 20,450.74, 30,654.09 and 9,898.46

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Solution

The fourth proportional to 20,450.74, 30,654.09 and 9,898.46 is: 14,837.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.74 : 30,654.09 = 9,898.46 : x
  2. Step 2: Convert to fraction form
    20,450.74/30,654.09 = 9,898.46/x
  3. Step 3: Cross multiply
    20,450.74x = 30,654.09 × 9,898.46
  4. Step 4: Simplify right side
    20,450.74x = 303,428,283.70
  5. Step 5: Solve for x
    x = 303,428,283.70/20,450.74
  6. Step 6: Final answer
    x = 14,837.03

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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.