Home / 21,523.36-29,699.58-12,450.28

Finding the Fourth Proportional to 21,523.36, 29,699.58 and 12,450.28

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Solution

The fourth proportional to 21,523.36, 29,699.58 and 12,450.28 is: 17,179.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.36 : 29,699.58 = 12,450.28 : x
  2. Step 2: Convert to fraction form
    21,523.36/29,699.58 = 12,450.28/x
  3. Step 3: Cross multiply
    21,523.36x = 29,699.58 × 12,450.28
  4. Step 4: Simplify right side
    21,523.36x = 369,768,086.88
  5. Step 5: Solve for x
    x = 369,768,086.88/21,523.36
  6. Step 6: Final answer
    x = 17,179.85

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1.5x scale

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.