Home / 21,054.73-31,571.50-7,009.75

Finding the Fourth Proportional to 21,054.73, 31,571.50 and 7,009.75

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Solution

The fourth proportional to 21,054.73, 31,571.50 and 7,009.75 is: 10,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.73 : 31,571.50 = 7,009.75 : x
  2. Step 2: Convert to fraction form
    21,054.73/31,571.50 = 7,009.75/x
  3. Step 3: Cross multiply
    21,054.73x = 31,571.50 × 7,009.75
  4. Step 4: Simplify right side
    21,054.73x = 221,308,225.67
  5. Step 5: Solve for x
    x = 221,308,225.67/21,054.73
  6. Step 6: Final answer
    x = 10,511.09

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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.