Home / 20,963.55-28,929.24-12,016.34

Finding the Fourth Proportional to 20,963.55, 28,929.24 and 12,016.34

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Solution

The fourth proportional to 20,963.55, 28,929.24 and 12,016.34 is: 16,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.55 : 28,929.24 = 12,016.34 : x
  2. Step 2: Convert to fraction form
    20,963.55/28,929.24 = 12,016.34/x
  3. Step 3: Cross multiply
    20,963.55x = 28,929.24 × 12,016.34
  4. Step 4: Simplify right side
    20,963.55x = 347,623,439.14
  5. Step 5: Solve for x
    x = 347,623,439.14/20,963.55
  6. Step 6: Final answer
    x = 16,582.28

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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.