Home / 30,427.40-41,987.41-16,997.60

Finding the Fourth Proportional to 30,427.40, 41,987.41 and 16,997.60

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Solution

The fourth proportional to 30,427.40, 41,987.41 and 16,997.60 is: 23,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.40 : 41,987.41 = 16,997.60 : x
  2. Step 2: Convert to fraction form
    30,427.40/41,987.41 = 16,997.60/x
  3. Step 3: Cross multiply
    30,427.40x = 41,987.41 × 16,997.60
  4. Step 4: Simplify right side
    30,427.40x = 713,684,947.78
  5. Step 5: Solve for x
    x = 713,684,947.78/30,427.40
  6. Step 6: Final answer
    x = 23,455.34

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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.