Home / 19,219.68-28,836-19,090.08

Finding the Fourth Proportional to 19,219.68, 28,836 and 19,090.08

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Solution

The fourth proportional to 19,219.68, 28,836 and 19,090.08 is: 28,641.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.68 : 28,836 = 19,090.08 : x
  2. Step 2: Convert to fraction form
    19,219.68/28,836 = 19,090.08/x
  3. Step 3: Cross multiply
    19,219.68x = 28,836 × 19,090.08
  4. Step 4: Simplify right side
    19,219.68x = 550,481,546.88
  5. Step 5: Solve for x
    x = 550,481,546.88/19,219.68
  6. Step 6: Final answer
    x = 28,641.56

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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.