Home / 19,822.36-29,738.50-13,990.36

Finding the Fourth Proportional to 19,822.36, 29,738.50 and 13,990.36

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Solution

The fourth proportional to 19,822.36, 29,738.50 and 13,990.36 is: 20,989.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,822.36 : 29,738.50 = 13,990.36 : x
  2. Step 2: Convert to fraction form
    19,822.36/29,738.50 = 13,990.36/x
  3. Step 3: Cross multiply
    19,822.36x = 29,738.50 × 13,990.36
  4. Step 4: Simplify right side
    19,822.36x = 416,052,320.86
  5. Step 5: Solve for x
    x = 416,052,320.86/19,822.36
  6. Step 6: Final answer
    x = 20,989.04

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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.