Home / 30,629.97-45,923.36-11,894.40

Finding the Fourth Proportional to 30,629.97, 45,923.36 and 11,894.40

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Solution

The fourth proportional to 30,629.97, 45,923.36 and 11,894.40 is: 17,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.97 : 45,923.36 = 11,894.40 : x
  2. Step 2: Convert to fraction form
    30,629.97/45,923.36 = 11,894.40/x
  3. Step 3: Cross multiply
    30,629.97x = 45,923.36 × 11,894.40
  4. Step 4: Simplify right side
    30,629.97x = 546,230,753.71
  5. Step 5: Solve for x
    x = 546,230,753.71/30,629.97
  6. Step 6: Final answer
    x = 17,833.21

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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.