Home / 28,514.94-42,771.96-10,988.70

Finding the Fourth Proportional to 28,514.94, 42,771.96 and 10,988.70

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Solution

The fourth proportional to 28,514.94, 42,771.96 and 10,988.70 is: 16,482.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.94 : 42,771.96 = 10,988.70 : x
  2. Step 2: Convert to fraction form
    28,514.94/42,771.96 = 10,988.70/x
  3. Step 3: Cross multiply
    28,514.94x = 42,771.96 × 10,988.70
  4. Step 4: Simplify right side
    28,514.94x = 470,008,236.85
  5. Step 5: Solve for x
    x = 470,008,236.85/28,514.94
  6. Step 6: Final answer
    x = 16,482.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.