Home / 20,612.27-28,444.77-11,537.64

Finding the Fourth Proportional to 20,612.27, 28,444.77 and 11,537.64

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Solution

The fourth proportional to 20,612.27, 28,444.77 and 11,537.64 is: 15,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.27 : 28,444.77 = 11,537.64 : x
  2. Step 2: Convert to fraction form
    20,612.27/28,444.77 = 11,537.64/x
  3. Step 3: Cross multiply
    20,612.27x = 28,444.77 × 11,537.64
  4. Step 4: Simplify right side
    20,612.27x = 328,185,516.14
  5. Step 5: Solve for x
    x = 328,185,516.14/20,612.27
  6. Step 6: Final answer
    x = 15,921.85

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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.