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Finding the Fourth Proportional to 18,141.98, 26,993.45 and 17,690.00

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Solution

The fourth proportional to 18,141.98, 26,993.45 and 17,690.00 is: 26,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.98 : 26,993.45 = 17,690.00 : x
  2. Step 2: Convert to fraction form
    18,141.98/26,993.45 = 17,690.00/x
  3. Step 3: Cross multiply
    18,141.98x = 26,993.45 × 17,690.00
  4. Step 4: Simplify right side
    18,141.98x = 477,514,039.76
  5. Step 5: Solve for x
    x = 477,514,039.76/18,141.98
  6. Step 6: Final answer
    x = 26,320.95

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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.