Home / 20,830.94-31,250.06-13,442.52

Finding the Fourth Proportional to 20,830.94, 31,250.06 and 13,442.52

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Solution

The fourth proportional to 20,830.94, 31,250.06 and 13,442.52 is: 20,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830.94 : 31,250.06 = 13,442.52 : x
  2. Step 2: Convert to fraction form
    20,830.94/31,250.06 = 13,442.52/x
  3. Step 3: Cross multiply
    20,830.94x = 31,250.06 × 13,442.52
  4. Step 4: Simplify right side
    20,830.94x = 420,079,489.34
  5. Step 5: Solve for x
    x = 420,079,489.34/20,830.94
  6. Step 6: Final answer
    x = 20,166.14

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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.