Home / 19,816.80-29,725.16-4,823.80

Finding the Fourth Proportional to 19,816.80, 29,725.16 and 4,823.80

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Solution

The fourth proportional to 19,816.80, 29,725.16 and 4,823.80 is: 7,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.80 : 29,725.16 = 4,823.80 : x
  2. Step 2: Convert to fraction form
    19,816.80/29,725.16 = 4,823.80/x
  3. Step 3: Cross multiply
    19,816.80x = 29,725.16 × 4,823.80
  4. Step 4: Simplify right side
    19,816.80x = 143,388,226.81
  5. Step 5: Solve for x
    x = 143,388,226.81/19,816.80
  6. Step 6: Final answer
    x = 7,235.69

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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.