Home / 19,722.69-29,582.82-8,628.12

Finding the Fourth Proportional to 19,722.69, 29,582.82 and 8,628.12

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Solution

The fourth proportional to 19,722.69, 29,582.82 and 8,628.12 is: 12,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.69 : 29,582.82 = 8,628.12 : x
  2. Step 2: Convert to fraction form
    19,722.69/29,582.82 = 8,628.12/x
  3. Step 3: Cross multiply
    19,722.69x = 29,582.82 × 8,628.12
  4. Step 4: Simplify right side
    19,722.69x = 255,244,120.90
  5. Step 5: Solve for x
    x = 255,244,120.90/19,722.69
  6. Step 6: Final answer
    x = 12,941.65

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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.