Home / 20,704.43-28,572.99-11,752.77

Finding the Fourth Proportional to 20,704.43, 28,572.99 and 11,752.77

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Solution

The fourth proportional to 20,704.43, 28,572.99 and 11,752.77 is: 16,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.43 : 28,572.99 = 11,752.77 : x
  2. Step 2: Convert to fraction form
    20,704.43/28,572.99 = 11,752.77/x
  3. Step 3: Cross multiply
    20,704.43x = 28,572.99 × 11,752.77
  4. Step 4: Simplify right side
    20,704.43x = 335,811,779.68
  5. Step 5: Solve for x
    x = 335,811,779.68/20,704.43
  6. Step 6: Final answer
    x = 16,219.32

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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.