Home / 28,610.42-39,514.71-19,520.18

Finding the Fourth Proportional to 28,610.42, 39,514.71 and 19,520.18

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Solution

The fourth proportional to 28,610.42, 39,514.71 and 19,520.18 is: 26,959.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.42 : 39,514.71 = 19,520.18 : x
  2. Step 2: Convert to fraction form
    28,610.42/39,514.71 = 19,520.18/x
  3. Step 3: Cross multiply
    28,610.42x = 39,514.71 × 19,520.18
  4. Step 4: Simplify right side
    28,610.42x = 771,334,251.85
  5. Step 5: Solve for x
    x = 771,334,251.85/28,610.42
  6. Step 6: Final answer
    x = 26,959.91

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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.