Home / 20,963.73-28,929.95-12,016.43

Finding the Fourth Proportional to 20,963.73, 28,929.95 and 12,016.43

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Solution

The fourth proportional to 20,963.73, 28,929.95 and 12,016.43 is: 16,582.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.73 : 28,929.95 = 12,016.43 : x
  2. Step 2: Convert to fraction form
    20,963.73/28,929.95 = 12,016.43/x
  3. Step 3: Cross multiply
    20,963.73x = 28,929.95 × 12,016.43
  4. Step 4: Simplify right side
    20,963.73x = 347,634,626.66
  5. Step 5: Solve for x
    x = 347,634,626.66/20,963.73
  6. Step 6: Final answer
    x = 16,582.67

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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.