Home / 21,293.12-31,945.08-6,501.44

Finding the Fourth Proportional to 21,293.12, 31,945.08 and 6,501.44

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Solution

The fourth proportional to 21,293.12, 31,945.08 and 6,501.44 is: 9,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.12 : 31,945.08 = 6,501.44 : x
  2. Step 2: Convert to fraction form
    21,293.12/31,945.08 = 6,501.44/x
  3. Step 3: Cross multiply
    21,293.12x = 31,945.08 × 6,501.44
  4. Step 4: Simplify right side
    21,293.12x = 207,689,020.92
  5. Step 5: Solve for x
    x = 207,689,020.92/21,293.12
  6. Step 6: Final answer
    x = 9,753.81

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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.