Home / 21,040.81-29,036.31-11,609.38

Finding the Fourth Proportional to 21,040.81, 29,036.31 and 11,609.38

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Solution

The fourth proportional to 21,040.81, 29,036.31 and 11,609.38 is: 16,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.81 : 29,036.31 = 11,609.38 : x
  2. Step 2: Convert to fraction form
    21,040.81/29,036.31 = 11,609.38/x
  3. Step 3: Cross multiply
    21,040.81x = 29,036.31 × 11,609.38
  4. Step 4: Simplify right side
    21,040.81x = 337,093,386.02
  5. Step 5: Solve for x
    x = 337,093,386.02/21,040.81
  6. Step 6: Final answer
    x = 16,020.93

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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.