Home / 28,226.10-38,952.84-16,290.09

Finding the Fourth Proportional to 28,226.10, 38,952.84 and 16,290.09

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Solution

The fourth proportional to 28,226.10, 38,952.84 and 16,290.09 is: 22,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226.10 : 38,952.84 = 16,290.09 : x
  2. Step 2: Convert to fraction form
    28,226.10/38,952.84 = 16,290.09/x
  3. Step 3: Cross multiply
    28,226.10x = 38,952.84 × 16,290.09
  4. Step 4: Simplify right side
    28,226.10x = 634,545,269.36
  5. Step 5: Solve for x
    x = 634,545,269.36/28,226.10
  6. Step 6: Final answer
    x = 22,480.80

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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.