Home / 20,892.99-28,833.08-11,461.83

Finding the Fourth Proportional to 20,892.99, 28,833.08 and 11,461.83

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Solution

The fourth proportional to 20,892.99, 28,833.08 and 11,461.83 is: 15,817.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.99 : 28,833.08 = 11,461.83 : x
  2. Step 2: Convert to fraction form
    20,892.99/28,833.08 = 11,461.83/x
  3. Step 3: Cross multiply
    20,892.99x = 28,833.08 × 11,461.83
  4. Step 4: Simplify right side
    20,892.99x = 330,479,804.03
  5. Step 5: Solve for x
    x = 330,479,804.03/20,892.99
  6. Step 6: Final answer
    x = 15,817.74

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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.