Home / 21,747.49-29,999.97-16,433.08

Finding the Fourth Proportional to 21,747.49, 29,999.97 and 16,433.08

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Solution

The fourth proportional to 21,747.49, 29,999.97 and 16,433.08 is: 22,668.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747.49 : 29,999.97 = 16,433.08 : x
  2. Step 2: Convert to fraction form
    21,747.49/29,999.97 = 16,433.08/x
  3. Step 3: Cross multiply
    21,747.49x = 29,999.97 × 16,433.08
  4. Step 4: Simplify right side
    21,747.49x = 492,991,832.01
  5. Step 5: Solve for x
    x = 492,991,832.01/21,747.49
  6. Step 6: Final answer
    x = 22,668.91

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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.