Home / 19,279.01-28,920.65-6,128.31

Finding the Fourth Proportional to 19,279.01, 28,920.65 and 6,128.31

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Solution

The fourth proportional to 19,279.01, 28,920.65 and 6,128.31 is: 9,193.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,279.01 : 28,920.65 = 6,128.31 : x
  2. Step 2: Convert to fraction form
    19,279.01/28,920.65 = 6,128.31/x
  3. Step 3: Cross multiply
    19,279.01x = 28,920.65 × 6,128.31
  4. Step 4: Simplify right side
    19,279.01x = 177,234,623.73
  5. Step 5: Solve for x
    x = 177,234,623.73/19,279.01
  6. Step 6: Final answer
    x = 9,193.14

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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.