Home / 28,123.56-38,814.44-16,186.60

Finding the Fourth Proportional to 28,123.56, 38,814.44 and 16,186.60

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Solution

The fourth proportional to 28,123.56, 38,814.44 and 16,186.60 is: 22,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.56 : 38,814.44 = 16,186.60 : x
  2. Step 2: Convert to fraction form
    28,123.56/38,814.44 = 16,186.60/x
  3. Step 3: Cross multiply
    28,123.56x = 38,814.44 × 16,186.60
  4. Step 4: Simplify right side
    28,123.56x = 628,273,814.50
  5. Step 5: Solve for x
    x = 628,273,814.50/28,123.56
  6. Step 6: Final answer
    x = 22,339.77

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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.