Home / 28,886.45-43,332.12-8,109.95

Finding the Fourth Proportional to 28,886.45, 43,332.12 and 8,109.95

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Solution

The fourth proportional to 28,886.45, 43,332.12 and 8,109.95 is: 12,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.45 : 43,332.12 = 8,109.95 : x
  2. Step 2: Convert to fraction form
    28,886.45/43,332.12 = 8,109.95/x
  3. Step 3: Cross multiply
    28,886.45x = 43,332.12 × 8,109.95
  4. Step 4: Simplify right side
    28,886.45x = 351,421,109.93
  5. Step 5: Solve for x
    x = 351,421,109.93/28,886.45
  6. Step 6: Final answer
    x = 12,165.61

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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.