Home / 28,656.46-42,992.64-12,012.58

Finding the Fourth Proportional to 28,656.46, 42,992.64 and 12,012.58

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Solution

The fourth proportional to 28,656.46, 42,992.64 and 12,012.58 is: 18,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.46 : 42,992.64 = 12,012.58 : x
  2. Step 2: Convert to fraction form
    28,656.46/42,992.64 = 12,012.58/x
  3. Step 3: Cross multiply
    28,656.46x = 42,992.64 × 12,012.58
  4. Step 4: Simplify right side
    28,656.46x = 516,452,527.41
  5. Step 5: Solve for x
    x = 516,452,527.41/28,656.46
  6. Step 6: Final answer
    x = 18,022.20

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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.