Home / 30,283.07-41,772.92-19,679.76

Finding the Fourth Proportional to 30,283.07, 41,772.92 and 19,679.76

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Solution

The fourth proportional to 30,283.07, 41,772.92 and 19,679.76 is: 27,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283.07 : 41,772.92 = 19,679.76 : x
  2. Step 2: Convert to fraction form
    30,283.07/41,772.92 = 19,679.76/x
  3. Step 3: Cross multiply
    30,283.07x = 41,772.92 × 19,679.76
  4. Step 4: Simplify right side
    30,283.07x = 822,080,941.70
  5. Step 5: Solve for x
    x = 822,080,941.70/30,283.07
  6. Step 6: Final answer
    x = 27,146.56

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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.