Home / 28,932.39-43,398.45-12,289.86

Finding the Fourth Proportional to 28,932.39, 43,398.45 and 12,289.86

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Solution

The fourth proportional to 28,932.39, 43,398.45 and 12,289.86 is: 18,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,932.39 : 43,398.45 = 12,289.86 : x
  2. Step 2: Convert to fraction form
    28,932.39/43,398.45 = 12,289.86/x
  3. Step 3: Cross multiply
    28,932.39x = 43,398.45 × 12,289.86
  4. Step 4: Simplify right side
    28,932.39x = 533,360,874.72
  5. Step 5: Solve for x
    x = 533,360,874.72/28,932.39
  6. Step 6: Final answer
    x = 18,434.73

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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.