Home / 21,040.38-29,035.53-11,609.01

Finding the Fourth Proportional to 21,040.38, 29,035.53 and 11,609.01

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Solution

The fourth proportional to 21,040.38, 29,035.53 and 11,609.01 is: 16,020.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.38 : 29,035.53 = 11,609.01 : x
  2. Step 2: Convert to fraction form
    21,040.38/29,035.53 = 11,609.01/x
  3. Step 3: Cross multiply
    21,040.38x = 29,035.53 × 11,609.01
  4. Step 4: Simplify right side
    21,040.38x = 337,073,758.13
  5. Step 5: Solve for x
    x = 337,073,758.13/21,040.38
  6. Step 6: Final answer
    x = 16,020.33

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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.