Home / 28,236.58-38,966.12-16,136.93

Finding the Fourth Proportional to 28,236.58, 38,966.12 and 16,136.93

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Solution

The fourth proportional to 28,236.58, 38,966.12 and 16,136.93 is: 22,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.58 : 38,966.12 = 16,136.93 : x
  2. Step 2: Convert to fraction form
    28,236.58/38,966.12 = 16,136.93/x
  3. Step 3: Cross multiply
    28,236.58x = 38,966.12 × 16,136.93
  4. Step 4: Simplify right side
    28,236.58x = 628,793,447.62
  5. Step 5: Solve for x
    x = 628,793,447.62/28,236.58
  6. Step 6: Final answer
    x = 22,268.75

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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.