Home / 19,190.20-28,650.36-14,663.56

Finding the Fourth Proportional to 19,190.20, 28,650.36 and 14,663.56

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Solution

The fourth proportional to 19,190.20, 28,650.36 and 14,663.56 is: 21,892.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.20 : 28,650.36 = 14,663.56 : x
  2. Step 2: Convert to fraction form
    19,190.20/28,650.36 = 14,663.56/x
  3. Step 3: Cross multiply
    19,190.20x = 28,650.36 × 14,663.56
  4. Step 4: Simplify right side
    19,190.20x = 420,116,384.20
  5. Step 5: Solve for x
    x = 420,116,384.20/19,190.20
  6. Step 6: Final answer
    x = 21,892.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.