Home / 19,819.65-27,336.78-16,830.75

Finding the Fourth Proportional to 19,819.65, 27,336.78 and 16,830.75

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Solution

The fourth proportional to 19,819.65, 27,336.78 and 16,830.75 is: 23,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.65 : 27,336.78 = 16,830.75 : x
  2. Step 2: Convert to fraction form
    19,819.65/27,336.78 = 16,830.75/x
  3. Step 3: Cross multiply
    19,819.65x = 27,336.78 × 16,830.75
  4. Step 4: Simplify right side
    19,819.65x = 460,098,509.99
  5. Step 5: Solve for x
    x = 460,098,509.99/19,819.65
  6. Step 6: Final answer
    x = 23,214.26

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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.