Home / 20,598.96-28,421.76-12,100.62

Finding the Fourth Proportional to 20,598.96, 28,421.76 and 12,100.62

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Solution

The fourth proportional to 20,598.96, 28,421.76 and 12,100.62 is: 16,696.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.96 : 28,421.76 = 12,100.62 : x
  2. Step 2: Convert to fraction form
    20,598.96/28,421.76 = 12,100.62/x
  3. Step 3: Cross multiply
    20,598.96x = 28,421.76 × 12,100.62
  4. Step 4: Simplify right side
    20,598.96x = 343,920,917.49
  5. Step 5: Solve for x
    x = 343,920,917.49/20,598.96
  6. Step 6: Final answer
    x = 16,696.03

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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.