Home / 21,496.28-29,676-16,705.52

Finding the Fourth Proportional to 21,496.28, 29,676 and 16,705.52

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Solution

The fourth proportional to 21,496.28, 29,676 and 16,705.52 is: 23,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,496.28 : 29,676 = 16,705.52 : x
  2. Step 2: Convert to fraction form
    21,496.28/29,676 = 16,705.52/x
  3. Step 3: Cross multiply
    21,496.28x = 29,676 × 16,705.52
  4. Step 4: Simplify right side
    21,496.28x = 495,753,011.52
  5. Step 5: Solve for x
    x = 495,753,011.52/21,496.28
  6. Step 6: Final answer
    x = 23,062.27

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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.