Home / 21,605.18-29,828.90-17,635.73

Finding the Fourth Proportional to 21,605.18, 29,828.90 and 17,635.73

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Solution

The fourth proportional to 21,605.18, 29,828.90 and 17,635.73 is: 24,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,605.18 : 29,828.90 = 17,635.73 : x
  2. Step 2: Convert to fraction form
    21,605.18/29,828.90 = 17,635.73/x
  3. Step 3: Cross multiply
    21,605.18x = 29,828.90 × 17,635.73
  4. Step 4: Simplify right side
    21,605.18x = 526,054,321.54
  5. Step 5: Solve for x
    x = 526,054,321.54/21,605.18
  6. Step 6: Final answer
    x = 24,348.53

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1.5x scale

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.