Home / 18,889.20-26,103.06-14,165.28

Finding the Fourth Proportional to 18,889.20, 26,103.06 and 14,165.28

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Solution

The fourth proportional to 18,889.20, 26,103.06 and 14,165.28 is: 19,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.20 : 26,103.06 = 14,165.28 : x
  2. Step 2: Convert to fraction form
    18,889.20/26,103.06 = 14,165.28/x
  3. Step 3: Cross multiply
    18,889.20x = 26,103.06 × 14,165.28
  4. Step 4: Simplify right side
    18,889.20x = 369,757,153.76
  5. Step 5: Solve for x
    x = 369,757,153.76/18,889.20
  6. Step 6: Final answer
    x = 19,575.06

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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.