Home / 28,840.96-39,789.88-16,899.94

Finding the Fourth Proportional to 28,840.96, 39,789.88 and 16,899.94

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Solution

The fourth proportional to 28,840.96, 39,789.88 and 16,899.94 is: 23,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.96 : 39,789.88 = 16,899.94 : x
  2. Step 2: Convert to fraction form
    28,840.96/39,789.88 = 16,899.94/x
  3. Step 3: Cross multiply
    28,840.96x = 39,789.88 × 16,899.94
  4. Step 4: Simplify right side
    28,840.96x = 672,446,687.16
  5. Step 5: Solve for x
    x = 672,446,687.16/28,840.96
  6. Step 6: Final answer
    x = 23,315.68

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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.