Home / 19,704.06-29,356.96-18,763.65

Finding the Fourth Proportional to 19,704.06, 29,356.96 and 18,763.65

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Solution

The fourth proportional to 19,704.06, 29,356.96 and 18,763.65 is: 27,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,704.06 : 29,356.96 = 18,763.65 : x
  2. Step 2: Convert to fraction form
    19,704.06/29,356.96 = 18,763.65/x
  3. Step 3: Cross multiply
    19,704.06x = 29,356.96 × 18,763.65
  4. Step 4: Simplify right side
    19,704.06x = 550,843,658.00
  5. Step 5: Solve for x
    x = 550,843,658.00/19,704.06
  6. Step 6: Final answer
    x = 27,955.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.