Home / 21,328.92-29,433.83-11,769.40

Finding the Fourth Proportional to 21,328.92, 29,433.83 and 11,769.40

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Solution

The fourth proportional to 21,328.92, 29,433.83 and 11,769.40 is: 16,241.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328.92 : 29,433.83 = 11,769.40 : x
  2. Step 2: Convert to fraction form
    21,328.92/29,433.83 = 11,769.40/x
  3. Step 3: Cross multiply
    21,328.92x = 29,433.83 × 11,769.40
  4. Step 4: Simplify right side
    21,328.92x = 346,418,518.80
  5. Step 5: Solve for x
    x = 346,418,518.80/21,328.92
  6. Step 6: Final answer
    x = 16,241.73

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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.