Home / 21,481.08-32,177.86-9,802.50

Finding the Fourth Proportional to 21,481.08, 32,177.86 and 9,802.50

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Solution

The fourth proportional to 21,481.08, 32,177.86 and 9,802.50 is: 14,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.08 : 32,177.86 = 9,802.50 : x
  2. Step 2: Convert to fraction form
    21,481.08/32,177.86 = 9,802.50/x
  3. Step 3: Cross multiply
    21,481.08x = 32,177.86 × 9,802.50
  4. Step 4: Simplify right side
    21,481.08x = 315,423,472.65
  5. Step 5: Solve for x
    x = 315,423,472.65/21,481.08
  6. Step 6: Final answer
    x = 14,683.78

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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.