Home / 19,642.08-27,107.28-11,259.84

Finding the Fourth Proportional to 19,642.08, 27,107.28 and 11,259.84

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Solution

The fourth proportional to 19,642.08, 27,107.28 and 11,259.84 is: 15,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.08 : 27,107.28 = 11,259.84 : x
  2. Step 2: Convert to fraction form
    19,642.08/27,107.28 = 11,259.84/x
  3. Step 3: Cross multiply
    19,642.08x = 27,107.28 × 11,259.84
  4. Step 4: Simplify right side
    19,642.08x = 305,223,635.64
  5. Step 5: Solve for x
    x = 305,223,635.64/19,642.08
  6. Step 6: Final answer
    x = 15,539.27

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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.