Home / 28,958.23-43,432.17-8,690.86

Finding the Fourth Proportional to 28,958.23, 43,432.17 and 8,690.86

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Solution

The fourth proportional to 28,958.23, 43,432.17 and 8,690.86 is: 13,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,958.23 : 43,432.17 = 8,690.86 : x
  2. Step 2: Convert to fraction form
    28,958.23/43,432.17 = 8,690.86/x
  3. Step 3: Cross multiply
    28,958.23x = 43,432.17 × 8,690.86
  4. Step 4: Simplify right side
    28,958.23x = 377,462,908.97
  5. Step 5: Solve for x
    x = 377,462,908.97/28,958.23
  6. Step 6: Final answer
    x = 13,034.74

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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.