Home / 21,036.65-31,558.11-6,243.83

Finding the Fourth Proportional to 21,036.65, 31,558.11 and 6,243.83

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Solution

The fourth proportional to 21,036.65, 31,558.11 and 6,243.83 is: 9,366.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.65 : 31,558.11 = 6,243.83 : x
  2. Step 2: Convert to fraction form
    21,036.65/31,558.11 = 6,243.83/x
  3. Step 3: Cross multiply
    21,036.65x = 31,558.11 × 6,243.83
  4. Step 4: Simplify right side
    21,036.65x = 197,043,316.17
  5. Step 5: Solve for x
    x = 197,043,316.17/21,036.65
  6. Step 6: Final answer
    x = 9,366.67

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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.