Home / 28,514.37-42,769.53-8,790.87

Finding the Fourth Proportional to 28,514.37, 42,769.53 and 8,790.87

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Solution

The fourth proportional to 28,514.37, 42,769.53 and 8,790.87 is: 13,185.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.37 : 42,769.53 = 8,790.87 : x
  2. Step 2: Convert to fraction form
    28,514.37/42,769.53 = 8,790.87/x
  3. Step 3: Cross multiply
    28,514.37x = 42,769.53 × 8,790.87
  4. Step 4: Simplify right side
    28,514.37x = 375,981,378.19
  5. Step 5: Solve for x
    x = 375,981,378.19/28,514.37
  6. Step 6: Final answer
    x = 13,185.68

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1.5x scale

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.