Home / 19,930.76-27,305.28-19,183.40

Finding the Fourth Proportional to 19,930.76, 27,305.28 and 19,183.40

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Solution

The fourth proportional to 19,930.76, 27,305.28 and 19,183.40 is: 26,281.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.76 : 27,305.28 = 19,183.40 : x
  2. Step 2: Convert to fraction form
    19,930.76/27,305.28 = 19,183.40/x
  3. Step 3: Cross multiply
    19,930.76x = 27,305.28 × 19,183.40
  4. Step 4: Simplify right side
    19,930.76x = 523,808,012.44
  5. Step 5: Solve for x
    x = 523,808,012.44/19,930.76
  6. Step 6: Final answer
    x = 26,281.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.