Home / 21,020.51-29,006.84-11,823.44

Finding the Fourth Proportional to 21,020.51, 29,006.84 and 11,823.44

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Solution

The fourth proportional to 21,020.51, 29,006.84 and 11,823.44 is: 16,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.51 : 29,006.84 = 11,823.44 : x
  2. Step 2: Convert to fraction form
    21,020.51/29,006.84 = 11,823.44/x
  3. Step 3: Cross multiply
    21,020.51x = 29,006.84 × 11,823.44
  4. Step 4: Simplify right side
    21,020.51x = 342,960,632.33
  5. Step 5: Solve for x
    x = 342,960,632.33/21,020.51
  6. Step 6: Final answer
    x = 16,315.52

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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.