Home / 20,608.37-28,430.52-12,106.65

Finding the Fourth Proportional to 20,608.37, 28,430.52 and 12,106.65

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Solution

The fourth proportional to 20,608.37, 28,430.52 and 12,106.65 is: 16,701.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.37 : 28,430.52 = 12,106.65 : x
  2. Step 2: Convert to fraction form
    20,608.37/28,430.52 = 12,106.65/x
  3. Step 3: Cross multiply
    20,608.37x = 28,430.52 × 12,106.65
  4. Step 4: Simplify right side
    20,608.37x = 344,198,416.17
  5. Step 5: Solve for x
    x = 344,198,416.17/20,608.37
  6. Step 6: Final answer
    x = 16,701.88

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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.