Home / 21,034.92-31,544.50-6,992.35

Finding the Fourth Proportional to 21,034.92, 31,544.50 and 6,992.35

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Solution

The fourth proportional to 21,034.92, 31,544.50 and 6,992.35 is: 10,485.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.92 : 31,544.50 = 6,992.35 : x
  2. Step 2: Convert to fraction form
    21,034.92/31,544.50 = 6,992.35/x
  3. Step 3: Cross multiply
    21,034.92x = 31,544.50 × 6,992.35
  4. Step 4: Simplify right side
    21,034.92x = 220,570,298.45
  5. Step 5: Solve for x
    x = 220,570,298.45/21,034.92
  6. Step 6: Final answer
    x = 10,485.91

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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.