Home / 25,730.20-38,595.30-10,939.60

Finding the Fourth Proportional to 25,730.20, 38,595.30 and 10,939.60

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Solution

The fourth proportional to 25,730.20, 38,595.30 and 10,939.60 is: 16,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,730.20 : 38,595.30 = 10,939.60 : x
  2. Step 2: Convert to fraction form
    25,730.20/38,595.30 = 10,939.60/x
  3. Step 3: Cross multiply
    25,730.20x = 38,595.30 × 10,939.60
  4. Step 4: Simplify right side
    25,730.20x = 422,217,143.88
  5. Step 5: Solve for x
    x = 422,217,143.88/25,730.20
  6. Step 6: Final answer
    x = 16,409.40

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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.