Home / 30,105.84-41,574.20-19,369.40

Finding the Fourth Proportional to 30,105.84, 41,574.20 and 19,369.40

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Solution

The fourth proportional to 30,105.84, 41,574.20 and 19,369.40 is: 26,747.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,105.84 : 41,574.20 = 19,369.40 : x
  2. Step 2: Convert to fraction form
    30,105.84/41,574.20 = 19,369.40/x
  3. Step 3: Cross multiply
    30,105.84x = 41,574.20 × 19,369.40
  4. Step 4: Simplify right side
    30,105.84x = 805,267,004.76
  5. Step 5: Solve for x
    x = 805,267,004.76/30,105.84
  6. Step 6: Final answer
    x = 26,747.87

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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.