Home / 28,675.65-43,013.43-18,812.58

Finding the Fourth Proportional to 28,675.65, 43,013.43 and 18,812.58

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Solution

The fourth proportional to 28,675.65, 43,013.43 and 18,812.58 is: 28,218.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,675.65 : 43,013.43 = 18,812.58 : x
  2. Step 2: Convert to fraction form
    28,675.65/43,013.43 = 18,812.58/x
  3. Step 3: Cross multiply
    28,675.65x = 43,013.43 × 18,812.58
  4. Step 4: Simplify right side
    28,675.65x = 809,193,592.95
  5. Step 5: Solve for x
    x = 809,193,592.95/28,675.65
  6. Step 6: Final answer
    x = 28,218.84

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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.