Home / 19,101.20-28,663.95-11,203.70

Finding the Fourth Proportional to 19,101.20, 28,663.95 and 11,203.70

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Solution

The fourth proportional to 19,101.20, 28,663.95 and 11,203.70 is: 16,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.20 : 28,663.95 = 11,203.70 : x
  2. Step 2: Convert to fraction form
    19,101.20/28,663.95 = 11,203.70/x
  3. Step 3: Cross multiply
    19,101.20x = 28,663.95 × 11,203.70
  4. Step 4: Simplify right side
    19,101.20x = 321,142,296.62
  5. Step 5: Solve for x
    x = 321,142,296.62/19,101.20
  6. Step 6: Final answer
    x = 16,812.68

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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.