Home / 21,327.90-29,433.12-11,896.26

Finding the Fourth Proportional to 21,327.90, 29,433.12 and 11,896.26

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Solution

The fourth proportional to 21,327.90, 29,433.12 and 11,896.26 is: 16,417.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,327.90 : 29,433.12 = 11,896.26 : x
  2. Step 2: Convert to fraction form
    21,327.90/29,433.12 = 11,896.26/x
  3. Step 3: Cross multiply
    21,327.90x = 29,433.12 × 11,896.26
  4. Step 4: Simplify right side
    21,327.90x = 350,143,930.71
  5. Step 5: Solve for x
    x = 350,143,930.71/21,327.90
  6. Step 6: Final answer
    x = 16,417.18

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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.