Home / 28,992.60-40,011.69-16,245.09

Finding the Fourth Proportional to 28,992.60, 40,011.69 and 16,245.09

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Solution

The fourth proportional to 28,992.60, 40,011.69 and 16,245.09 is: 22,419.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.60 : 40,011.69 = 16,245.09 : x
  2. Step 2: Convert to fraction form
    28,992.60/40,011.69 = 16,245.09/x
  3. Step 3: Cross multiply
    28,992.60x = 40,011.69 × 16,245.09
  4. Step 4: Simplify right side
    28,992.60x = 649,993,505.10
  5. Step 5: Solve for x
    x = 649,993,505.10/28,992.60
  6. Step 6: Final answer
    x = 22,419.29

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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.