Home / 19,980.58-27,571.23-11,027.50

Finding the Fourth Proportional to 19,980.58, 27,571.23 and 11,027.50

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Solution

The fourth proportional to 19,980.58, 27,571.23 and 11,027.50 is: 15,216.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,980.58 : 27,571.23 = 11,027.50 : x
  2. Step 2: Convert to fraction form
    19,980.58/27,571.23 = 11,027.50/x
  3. Step 3: Cross multiply
    19,980.58x = 27,571.23 × 11,027.50
  4. Step 4: Simplify right side
    19,980.58x = 304,041,780.40
  5. Step 5: Solve for x
    x = 304,041,780.40/19,980.58
  6. Step 6: Final answer
    x = 15,216.87

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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.