Home / 18,427.92-25,423.31-11,342.04

Finding the Fourth Proportional to 18,427.92, 25,423.31 and 11,342.04

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Solution

The fourth proportional to 18,427.92, 25,423.31 and 11,342.04 is: 15,647.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.92 : 25,423.31 = 11,342.04 : x
  2. Step 2: Convert to fraction form
    18,427.92/25,423.31 = 11,342.04/x
  3. Step 3: Cross multiply
    18,427.92x = 25,423.31 × 11,342.04
  4. Step 4: Simplify right side
    18,427.92x = 288,352,142.24
  5. Step 5: Solve for x
    x = 288,352,142.24/18,427.92
  6. Step 6: Final answer
    x = 15,647.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.