Home / 28,610.44-42,898.26-12,812.56

Finding the Fourth Proportional to 28,610.44, 42,898.26 and 12,812.56

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Solution

The fourth proportional to 28,610.44, 42,898.26 and 12,812.56 is: 19,211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.44 : 42,898.26 = 12,812.56 : x
  2. Step 2: Convert to fraction form
    28,610.44/42,898.26 = 12,812.56/x
  3. Step 3: Cross multiply
    28,610.44x = 42,898.26 × 12,812.56
  4. Step 4: Simplify right side
    28,610.44x = 549,636,530.15
  5. Step 5: Solve for x
    x = 549,636,530.15/28,610.44
  6. Step 6: Final answer
    x = 19,211.05

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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.