Home / 19,440.99-26,828.26-11,380.20

Finding the Fourth Proportional to 19,440.99, 26,828.26 and 11,380.20

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Solution

The fourth proportional to 19,440.99, 26,828.26 and 11,380.20 is: 15,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.99 : 26,828.26 = 11,380.20 : x
  2. Step 2: Convert to fraction form
    19,440.99/26,828.26 = 11,380.20/x
  3. Step 3: Cross multiply
    19,440.99x = 26,828.26 × 11,380.20
  4. Step 4: Simplify right side
    19,440.99x = 305,310,964.45
  5. Step 5: Solve for x
    x = 305,310,964.45/19,440.99
  6. Step 6: Final answer
    x = 15,704.50

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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.