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Finding the Fourth Proportional to 18,323.19, 27,521.61 and 17,806.41

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Solution

The fourth proportional to 18,323.19, 27,521.61 and 17,806.41 is: 26,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.19 : 27,521.61 = 17,806.41 : x
  2. Step 2: Convert to fraction form
    18,323.19/27,521.61 = 17,806.41/x
  3. Step 3: Cross multiply
    18,323.19x = 27,521.61 × 17,806.41
  4. Step 4: Simplify right side
    18,323.19x = 490,061,071.52
  5. Step 5: Solve for x
    x = 490,061,071.52/18,323.19
  6. Step 6: Final answer
    x = 26,745.40

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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.