Home / 21,434.90-29,579.62-11,744.29

Finding the Fourth Proportional to 21,434.90, 29,579.62 and 11,744.29

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Solution

The fourth proportional to 21,434.90, 29,579.62 and 11,744.29 is: 16,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.90 : 29,579.62 = 11,744.29 : x
  2. Step 2: Convert to fraction form
    21,434.90/29,579.62 = 11,744.29/x
  3. Step 3: Cross multiply
    21,434.90x = 29,579.62 × 11,744.29
  4. Step 4: Simplify right side
    21,434.90x = 347,391,648.49
  5. Step 5: Solve for x
    x = 347,391,648.49/21,434.90
  6. Step 6: Final answer
    x = 16,206.82

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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.