Home / 43,456.14-65,181.30-21,271.02

Finding the Fourth Proportional to 43,456.14, 65,181.30 and 21,271.02

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Solution

The fourth proportional to 43,456.14, 65,181.30 and 21,271.02 is: 31,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,456.14 : 65,181.30 = 21,271.02 : x
  2. Step 2: Convert to fraction form
    43,456.14/65,181.30 = 21,271.02/x
  3. Step 3: Cross multiply
    43,456.14x = 65,181.30 × 21,271.02
  4. Step 4: Simplify right side
    43,456.14x = 1,386,472,735.93
  5. Step 5: Solve for x
    x = 1,386,472,735.93/43,456.14
  6. Step 6: Final answer
    x = 31,905.11

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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.