Home / 21,054.83-29,052.56-12,102.71

Finding the Fourth Proportional to 21,054.83, 29,052.56 and 12,102.71

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Solution

The fourth proportional to 21,054.83, 29,052.56 and 12,102.71 is: 16,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.83 : 29,052.56 = 12,102.71 : x
  2. Step 2: Convert to fraction form
    21,054.83/29,052.56 = 12,102.71/x
  3. Step 3: Cross multiply
    21,054.83x = 29,052.56 × 12,102.71
  4. Step 4: Simplify right side
    21,054.83x = 351,614,647.92
  5. Step 5: Solve for x
    x = 351,614,647.92/21,054.83
  6. Step 6: Final answer
    x = 16,699.95

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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.