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Finding the Fourth Proportional to 28,751.34, 43,098.98 and 13,754.54

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Solution

The fourth proportional to 28,751.34, 43,098.98 and 13,754.54 is: 20,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.34 : 43,098.98 = 13,754.54 : x
  2. Step 2: Convert to fraction form
    28,751.34/43,098.98 = 13,754.54/x
  3. Step 3: Cross multiply
    28,751.34x = 43,098.98 × 13,754.54
  4. Step 4: Simplify right side
    28,751.34x = 592,806,740.65
  5. Step 5: Solve for x
    x = 592,806,740.65/28,751.34
  6. Step 6: Final answer
    x = 20,618.40

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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.