Home / 19,268.88-28,952.04-18,491.28

Finding the Fourth Proportional to 19,268.88, 28,952.04 and 18,491.28

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Solution

The fourth proportional to 19,268.88, 28,952.04 and 18,491.28 is: 27,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.88 : 28,952.04 = 18,491.28 : x
  2. Step 2: Convert to fraction form
    19,268.88/28,952.04 = 18,491.28/x
  3. Step 3: Cross multiply
    19,268.88x = 28,952.04 × 18,491.28
  4. Step 4: Simplify right side
    19,268.88x = 535,360,278.21
  5. Step 5: Solve for x
    x = 535,360,278.21/19,268.88
  6. Step 6: Final answer
    x = 27,783.67

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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.