Home / 21,065.62-31,598.33-8,582.86

Finding the Fourth Proportional to 21,065.62, 31,598.33 and 8,582.86

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Solution

The fourth proportional to 21,065.62, 31,598.33 and 8,582.86 is: 12,874.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.62 : 31,598.33 = 8,582.86 : x
  2. Step 2: Convert to fraction form
    21,065.62/31,598.33 = 8,582.86/x
  3. Step 3: Cross multiply
    21,065.62x = 31,598.33 × 8,582.86
  4. Step 4: Simplify right side
    21,065.62x = 271,204,042.62
  5. Step 5: Solve for x
    x = 271,204,042.62/21,065.62
  6. Step 6: Final answer
    x = 12,874.25

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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.