Home / 21,234.71-29,304.25-11,674.99

Finding the Fourth Proportional to 21,234.71, 29,304.25 and 11,674.99

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Solution

The fourth proportional to 21,234.71, 29,304.25 and 11,674.99 is: 16,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.71 : 29,304.25 = 11,674.99 : x
  2. Step 2: Convert to fraction form
    21,234.71/29,304.25 = 11,674.99/x
  3. Step 3: Cross multiply
    21,234.71x = 29,304.25 × 11,674.99
  4. Step 4: Simplify right side
    21,234.71x = 342,126,825.71
  5. Step 5: Solve for x
    x = 342,126,825.71/21,234.71
  6. Step 6: Final answer
    x = 16,111.68

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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.