Home / 21,607.06-29,825.12-12,657.41

Finding the Fourth Proportional to 21,607.06, 29,825.12 and 12,657.41

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Solution

The fourth proportional to 21,607.06, 29,825.12 and 12,657.41 is: 17,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,607.06 : 29,825.12 = 12,657.41 : x
  2. Step 2: Convert to fraction form
    21,607.06/29,825.12 = 12,657.41/x
  3. Step 3: Cross multiply
    21,607.06x = 29,825.12 × 12,657.41
  4. Step 4: Simplify right side
    21,607.06x = 377,508,708.85
  5. Step 5: Solve for x
    x = 377,508,708.85/21,607.06
  6. Step 6: Final answer
    x = 17,471.55

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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.