Home / 21,090.66-31,624.01-8,596.05

Finding the Fourth Proportional to 21,090.66, 31,624.01 and 8,596.05

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Solution

The fourth proportional to 21,090.66, 31,624.01 and 8,596.05 is: 12,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.66 : 31,624.01 = 8,596.05 : x
  2. Step 2: Convert to fraction form
    21,090.66/31,624.01 = 8,596.05/x
  3. Step 3: Cross multiply
    21,090.66x = 31,624.01 × 8,596.05
  4. Step 4: Simplify right side
    21,090.66x = 271,841,560.42
  5. Step 5: Solve for x
    x = 271,841,560.42/21,090.66
  6. Step 6: Final answer
    x = 12,889.19

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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.