Home / 20,401.83-28,153.58-12,016.71

Finding the Fourth Proportional to 20,401.83, 28,153.58 and 12,016.71

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Solution

The fourth proportional to 20,401.83, 28,153.58 and 12,016.71 is: 16,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.83 : 28,153.58 = 12,016.71 : x
  2. Step 2: Convert to fraction form
    20,401.83/28,153.58 = 12,016.71/x
  3. Step 3: Cross multiply
    20,401.83x = 28,153.58 × 12,016.71
  4. Step 4: Simplify right side
    20,401.83x = 338,313,346.24
  5. Step 5: Solve for x
    x = 338,313,346.24/20,401.83
  6. Step 6: Final answer
    x = 16,582.50

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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.