Home / 21,024.72-28,983.97-16,540.69

Finding the Fourth Proportional to 21,024.72, 28,983.97 and 16,540.69

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Solution

The fourth proportional to 21,024.72, 28,983.97 and 16,540.69 is: 22,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.72 : 28,983.97 = 16,540.69 : x
  2. Step 2: Convert to fraction form
    21,024.72/28,983.97 = 16,540.69/x
  3. Step 3: Cross multiply
    21,024.72x = 28,983.97 × 16,540.69
  4. Step 4: Simplify right side
    21,024.72x = 479,414,780.04
  5. Step 5: Solve for x
    x = 479,414,780.04/21,024.72
  6. Step 6: Final answer
    x = 22,802.44

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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.