Home / 20,560.96-28,369.02-12,063.88

Finding the Fourth Proportional to 20,560.96, 28,369.02 and 12,063.88

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Solution

The fourth proportional to 20,560.96, 28,369.02 and 12,063.88 is: 16,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.96 : 28,369.02 = 12,063.88 : x
  2. Step 2: Convert to fraction form
    20,560.96/28,369.02 = 12,063.88/x
  3. Step 3: Cross multiply
    20,560.96x = 28,369.02 × 12,063.88
  4. Step 4: Simplify right side
    20,560.96x = 342,240,453.00
  5. Step 5: Solve for x
    x = 342,240,453.00/20,560.96
  6. Step 6: Final answer
    x = 16,645.16

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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.