Home / 20,927.64-28,873.08-11,851.77

Finding the Fourth Proportional to 20,927.64, 28,873.08 and 11,851.77

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Solution

The fourth proportional to 20,927.64, 28,873.08 and 11,851.77 is: 16,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.64 : 28,873.08 = 11,851.77 : x
  2. Step 2: Convert to fraction form
    20,927.64/28,873.08 = 11,851.77/x
  3. Step 3: Cross multiply
    20,927.64x = 28,873.08 × 11,851.77
  4. Step 4: Simplify right side
    20,927.64x = 342,197,103.35
  5. Step 5: Solve for x
    x = 342,197,103.35/20,927.64
  6. Step 6: Final answer
    x = 16,351.44

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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.