Home / 21,672.27-29,899.49-16,020.58

Finding the Fourth Proportional to 21,672.27, 29,899.49 and 16,020.58

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Solution

The fourth proportional to 21,672.27, 29,899.49 and 16,020.58 is: 22,102.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.27 : 29,899.49 = 16,020.58 : x
  2. Step 2: Convert to fraction form
    21,672.27/29,899.49 = 16,020.58/x
  3. Step 3: Cross multiply
    21,672.27x = 29,899.49 × 16,020.58
  4. Step 4: Simplify right side
    21,672.27x = 479,007,091.40
  5. Step 5: Solve for x
    x = 479,007,091.40/21,672.27
  6. Step 6: Final answer
    x = 22,102.31

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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.