Home / 21,024.32-28,983.41-16,540.29

Finding the Fourth Proportional to 21,024.32, 28,983.41 and 16,540.29

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Solution

The fourth proportional to 21,024.32, 28,983.41 and 16,540.29 is: 22,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.32 : 28,983.41 = 16,540.29 : x
  2. Step 2: Convert to fraction form
    21,024.32/28,983.41 = 16,540.29/x
  3. Step 3: Cross multiply
    21,024.32x = 28,983.41 × 16,540.29
  4. Step 4: Simplify right side
    21,024.32x = 479,394,006.59
  5. Step 5: Solve for x
    x = 479,394,006.59/21,024.32
  6. Step 6: Final answer
    x = 22,801.88

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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.