Home / 21,505.48-32,260.29-8,358.88

Finding the Fourth Proportional to 21,505.48, 32,260.29 and 8,358.88

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Solution

The fourth proportional to 21,505.48, 32,260.29 and 8,358.88 is: 12,539.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.48 : 32,260.29 = 8,358.88 : x
  2. Step 2: Convert to fraction form
    21,505.48/32,260.29 = 8,358.88/x
  3. Step 3: Cross multiply
    21,505.48x = 32,260.29 × 8,358.88
  4. Step 4: Simplify right side
    21,505.48x = 269,659,892.88
  5. Step 5: Solve for x
    x = 269,659,892.88/21,505.48
  6. Step 6: Final answer
    x = 12,539.12

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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.