Home / 21,036.55-29,028.41-11,604.50

Finding the Fourth Proportional to 21,036.55, 29,028.41 and 11,604.50

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Solution

The fourth proportional to 21,036.55, 29,028.41 and 11,604.50 is: 16,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.55 : 29,028.41 = 11,604.50 : x
  2. Step 2: Convert to fraction form
    21,036.55/29,028.41 = 11,604.50/x
  3. Step 3: Cross multiply
    21,036.55x = 29,028.41 × 11,604.50
  4. Step 4: Simplify right side
    21,036.55x = 336,860,212.86
  5. Step 5: Solve for x
    x = 336,860,212.86/21,036.55
  6. Step 6: Final answer
    x = 16,013.10

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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.