Home / 18,379.34-25,365.92-17,878.96

Finding the Fourth Proportional to 18,379.34, 25,365.92 and 17,878.96

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Solution

The fourth proportional to 18,379.34, 25,365.92 and 17,878.96 is: 24,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,379.34 : 25,365.92 = 17,878.96 : x
  2. Step 2: Convert to fraction form
    18,379.34/25,365.92 = 17,878.96/x
  3. Step 3: Cross multiply
    18,379.34x = 25,365.92 × 17,878.96
  4. Step 4: Simplify right side
    18,379.34x = 453,516,269.04
  5. Step 5: Solve for x
    x = 453,516,269.04/18,379.34
  6. Step 6: Final answer
    x = 24,675.33

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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.