Home / 21,052.48-29,051.69-12,550.21

Finding the Fourth Proportional to 21,052.48, 29,051.69 and 12,550.21

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Solution

The fourth proportional to 21,052.48, 29,051.69 and 12,550.21 is: 17,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.48 : 29,051.69 = 12,550.21 : x
  2. Step 2: Convert to fraction form
    21,052.48/29,051.69 = 12,550.21/x
  3. Step 3: Cross multiply
    21,052.48x = 29,051.69 × 12,550.21
  4. Step 4: Simplify right side
    21,052.48x = 364,604,800.04
  5. Step 5: Solve for x
    x = 364,604,800.04/21,052.48
  6. Step 6: Final answer
    x = 17,318.86

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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.