Home / 30,040.74-45,017.28-16,896.78

Finding the Fourth Proportional to 30,040.74, 45,017.28 and 16,896.78

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Solution

The fourth proportional to 30,040.74, 45,017.28 and 16,896.78 is: 25,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.74 : 45,017.28 = 16,896.78 : x
  2. Step 2: Convert to fraction form
    30,040.74/45,017.28 = 16,896.78/x
  3. Step 3: Cross multiply
    30,040.74x = 45,017.28 × 16,896.78
  4. Step 4: Simplify right side
    30,040.74x = 760,647,076.36
  5. Step 5: Solve for x
    x = 760,647,076.36/30,040.74
  6. Step 6: Final answer
    x = 25,320.52

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1.5x scale

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.