Home / 20,595.68-28,421.98-11,164.24

Finding the Fourth Proportional to 20,595.68, 28,421.98 and 11,164.24

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Solution

The fourth proportional to 20,595.68, 28,421.98 and 11,164.24 is: 15,406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,595.68 : 28,421.98 = 11,164.24 : x
  2. Step 2: Convert to fraction form
    20,595.68/28,421.98 = 11,164.24/x
  3. Step 3: Cross multiply
    20,595.68x = 28,421.98 × 11,164.24
  4. Step 4: Simplify right side
    20,595.68x = 317,309,806.00
  5. Step 5: Solve for x
    x = 317,309,806.00/20,595.68
  6. Step 6: Final answer
    x = 15,406.62

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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.