Home / 21,724.47-32,566.40-7,676.64

Finding the Fourth Proportional to 21,724.47, 32,566.40 and 7,676.64

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Solution

The fourth proportional to 21,724.47, 32,566.40 and 7,676.64 is: 11,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,724.47 : 32,566.40 = 7,676.64 : x
  2. Step 2: Convert to fraction form
    21,724.47/32,566.40 = 7,676.64/x
  3. Step 3: Cross multiply
    21,724.47x = 32,566.40 × 7,676.64
  4. Step 4: Simplify right side
    21,724.47x = 250,000,490.51
  5. Step 5: Solve for x
    x = 250,000,490.51/21,724.47
  6. Step 6: Final answer
    x = 11,507.78

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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.