Home / 25,570.12-38,354.26-8,930.09

Finding the Fourth Proportional to 25,570.12, 38,354.26 and 8,930.09

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Solution

The fourth proportional to 25,570.12, 38,354.26 and 8,930.09 is: 13,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,570.12 : 38,354.26 = 8,930.09 : x
  2. Step 2: Convert to fraction form
    25,570.12/38,354.26 = 8,930.09/x
  3. Step 3: Cross multiply
    25,570.12x = 38,354.26 × 8,930.09
  4. Step 4: Simplify right side
    25,570.12x = 342,506,993.68
  5. Step 5: Solve for x
    x = 342,506,993.68/25,570.12
  6. Step 6: Final answer
    x = 13,394.81

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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.