Home / 30,356.64-41,868.50-19,749.69

Finding the Fourth Proportional to 30,356.64, 41,868.50 and 19,749.69

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Solution

The fourth proportional to 30,356.64, 41,868.50 and 19,749.69 is: 27,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,356.64 : 41,868.50 = 19,749.69 : x
  2. Step 2: Convert to fraction form
    30,356.64/41,868.50 = 19,749.69/x
  3. Step 3: Cross multiply
    30,356.64x = 41,868.50 × 19,749.69
  4. Step 4: Simplify right side
    30,356.64x = 826,889,797.02
  5. Step 5: Solve for x
    x = 826,889,797.02/30,356.64
  6. Step 6: Final answer
    x = 27,239.17

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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.