Home / 21,266.70-29,347.76-11,835.26

Finding the Fourth Proportional to 21,266.70, 29,347.76 and 11,835.26

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Solution

The fourth proportional to 21,266.70, 29,347.76 and 11,835.26 is: 16,332.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.70 : 29,347.76 = 11,835.26 : x
  2. Step 2: Convert to fraction form
    21,266.70/29,347.76 = 11,835.26/x
  3. Step 3: Cross multiply
    21,266.70x = 29,347.76 × 11,835.26
  4. Step 4: Simplify right side
    21,266.70x = 347,338,413.80
  5. Step 5: Solve for x
    x = 347,338,413.80/21,266.70
  6. Step 6: Final answer
    x = 16,332.50

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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.