Home / 21,004.47-28,986.83-12,053.61

Finding the Fourth Proportional to 21,004.47, 28,986.83 and 12,053.61

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Solution

The fourth proportional to 21,004.47, 28,986.83 and 12,053.61 is: 16,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004.47 : 28,986.83 = 12,053.61 : x
  2. Step 2: Convert to fraction form
    21,004.47/28,986.83 = 12,053.61/x
  3. Step 3: Cross multiply
    21,004.47x = 28,986.83 × 12,053.61
  4. Step 4: Simplify right side
    21,004.47x = 349,395,883.69
  5. Step 5: Solve for x
    x = 349,395,883.69/21,004.47
  6. Step 6: Final answer
    x = 16,634.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.