Home / 21,382.29-29,504.93-11,950.65

Finding the Fourth Proportional to 21,382.29, 29,504.93 and 11,950.65

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Solution

The fourth proportional to 21,382.29, 29,504.93 and 11,950.65 is: 16,490.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.29 : 29,504.93 = 11,950.65 : x
  2. Step 2: Convert to fraction form
    21,382.29/29,504.93 = 11,950.65/x
  3. Step 3: Cross multiply
    21,382.29x = 29,504.93 × 11,950.65
  4. Step 4: Simplify right side
    21,382.29x = 352,603,031.95
  5. Step 5: Solve for x
    x = 352,603,031.95/21,382.29
  6. Step 6: Final answer
    x = 16,490.42

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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.