Home / 30,722.88-46,037.36-20,690.48

Finding the Fourth Proportional to 30,722.88, 46,037.36 and 20,690.48

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Solution

The fourth proportional to 30,722.88, 46,037.36 and 20,690.48 is: 31,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,722.88 : 46,037.36 = 20,690.48 : x
  2. Step 2: Convert to fraction form
    30,722.88/46,037.36 = 20,690.48/x
  3. Step 3: Cross multiply
    30,722.88x = 46,037.36 × 20,690.48
  4. Step 4: Simplify right side
    30,722.88x = 952,535,076.33
  5. Step 5: Solve for x
    x = 952,535,076.33/30,722.88
  6. Step 6: Final answer
    x = 31,004.09

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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.