Home / 21,382.19-29,508.33-11,950.75

Finding the Fourth Proportional to 21,382.19, 29,508.33 and 11,950.75

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Solution

The fourth proportional to 21,382.19, 29,508.33 and 11,950.75 is: 16,492.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,382.19 : 29,508.33 = 11,950.75 : x
  2. Step 2: Convert to fraction form
    21,382.19/29,508.33 = 11,950.75/x
  3. Step 3: Cross multiply
    21,382.19x = 29,508.33 × 11,950.75
  4. Step 4: Simplify right side
    21,382.19x = 352,646,674.75
  5. Step 5: Solve for x
    x = 352,646,674.75/21,382.19
  6. Step 6: Final answer
    x = 16,492.54

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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.