Home / 28,561.10-42,849.04-16,724.88

Finding the Fourth Proportional to 28,561.10, 42,849.04 and 16,724.88

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Solution

The fourth proportional to 28,561.10, 42,849.04 and 16,724.88 is: 25,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.10 : 42,849.04 = 16,724.88 : x
  2. Step 2: Convert to fraction form
    28,561.10/42,849.04 = 16,724.88/x
  3. Step 3: Cross multiply
    28,561.10x = 42,849.04 × 16,724.88
  4. Step 4: Simplify right side
    28,561.10x = 716,644,837.87
  5. Step 5: Solve for x
    x = 716,644,837.87/28,561.10
  6. Step 6: Final answer
    x = 25,091.64

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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.