Home / 25,286.81-37,930.31-8,658.86

Finding the Fourth Proportional to 25,286.81, 37,930.31 and 8,658.86

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Solution

The fourth proportional to 25,286.81, 37,930.31 and 8,658.86 is: 12,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.81 : 37,930.31 = 8,658.86 : x
  2. Step 2: Convert to fraction form
    25,286.81/37,930.31 = 8,658.86/x
  3. Step 3: Cross multiply
    25,286.81x = 37,930.31 × 8,658.86
  4. Step 4: Simplify right side
    25,286.81x = 328,433,200.75
  5. Step 5: Solve for x
    x = 328,433,200.75/25,286.81
  6. Step 6: Final answer
    x = 12,988.32

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1.5x scale

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.