Home / 21,537.64-29,724.33-12,106

Finding the Fourth Proportional to 21,537.64, 29,724.33 and 12,106

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Solution

The fourth proportional to 21,537.64, 29,724.33 and 12,106 is: 16,707.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,537.64 : 29,724.33 = 12,106 : x
  2. Step 2: Convert to fraction form
    21,537.64/29,724.33 = 12,106/x
  3. Step 3: Cross multiply
    21,537.64x = 29,724.33 × 12,106
  4. Step 4: Simplify right side
    21,537.64x = 359,842,738.98
  5. Step 5: Solve for x
    x = 359,842,738.98/21,537.64
  6. Step 6: Final answer
    x = 16,707.62

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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.