Home / 21,266.29-29,348.45-11,835.46

Finding the Fourth Proportional to 21,266.29, 29,348.45 and 11,835.46

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Solution

The fourth proportional to 21,266.29, 29,348.45 and 11,835.46 is: 16,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.29 : 29,348.45 = 11,835.46 : x
  2. Step 2: Convert to fraction form
    21,266.29/29,348.45 = 11,835.46/x
  3. Step 3: Cross multiply
    21,266.29x = 29,348.45 × 11,835.46
  4. Step 4: Simplify right side
    21,266.29x = 347,352,362.25
  5. Step 5: Solve for x
    x = 347,352,362.25/21,266.29
  6. Step 6: Final answer
    x = 16,333.47

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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.