Home / 20,653.06-28,505.38-12,267.94

Finding the Fourth Proportional to 20,653.06, 28,505.38 and 12,267.94

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Solution

The fourth proportional to 20,653.06, 28,505.38 and 12,267.94 is: 16,932.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.06 : 28,505.38 = 12,267.94 : x
  2. Step 2: Convert to fraction form
    20,653.06/28,505.38 = 12,267.94/x
  3. Step 3: Cross multiply
    20,653.06x = 28,505.38 × 12,267.94
  4. Step 4: Simplify right side
    20,653.06x = 349,702,291.52
  5. Step 5: Solve for x
    x = 349,702,291.52/20,653.06
  6. Step 6: Final answer
    x = 16,932.23

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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.