Home / 21,040.67-29,036.74-11,609.84

Finding the Fourth Proportional to 21,040.67, 29,036.74 and 11,609.84

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Solution

The fourth proportional to 21,040.67, 29,036.74 and 11,609.84 is: 16,021.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.67 : 29,036.74 = 11,609.84 : x
  2. Step 2: Convert to fraction form
    21,040.67/29,036.74 = 11,609.84/x
  3. Step 3: Cross multiply
    21,040.67x = 29,036.74 × 11,609.84
  4. Step 4: Simplify right side
    21,040.67x = 337,111,920.06
  5. Step 5: Solve for x
    x = 337,111,920.06/21,040.67
  6. Step 6: Final answer
    x = 16,021.92

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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.