Home / 20,564.96-28,379.41-11,612.23

Finding the Fourth Proportional to 20,564.96, 28,379.41 and 11,612.23

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Solution

The fourth proportional to 20,564.96, 28,379.41 and 11,612.23 is: 16,024.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.96 : 28,379.41 = 11,612.23 : x
  2. Step 2: Convert to fraction form
    20,564.96/28,379.41 = 11,612.23/x
  3. Step 3: Cross multiply
    20,564.96x = 28,379.41 × 11,612.23
  4. Step 4: Simplify right side
    20,564.96x = 329,548,201.52
  5. Step 5: Solve for x
    x = 329,548,201.52/20,564.96
  6. Step 6: Final answer
    x = 16,024.75

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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.