Home / 21,345.43-32,014.54-7,833.80

Finding the Fourth Proportional to 21,345.43, 32,014.54 and 7,833.80

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Solution

The fourth proportional to 21,345.43, 32,014.54 and 7,833.80 is: 11,749.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.43 : 32,014.54 = 7,833.80 : x
  2. Step 2: Convert to fraction form
    21,345.43/32,014.54 = 7,833.80/x
  3. Step 3: Cross multiply
    21,345.43x = 32,014.54 × 7,833.80
  4. Step 4: Simplify right side
    21,345.43x = 250,795,503.45
  5. Step 5: Solve for x
    x = 250,795,503.45/21,345.43
  6. Step 6: Final answer
    x = 11,749.38

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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.