Home / 18,028.72-27,031.40-7,505.96

Finding the Fourth Proportional to 18,028.72, 27,031.40 and 7,505.96

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Solution

The fourth proportional to 18,028.72, 27,031.40 and 7,505.96 is: 11,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028.72 : 27,031.40 = 7,505.96 : x
  2. Step 2: Convert to fraction form
    18,028.72/27,031.40 = 7,505.96/x
  3. Step 3: Cross multiply
    18,028.72x = 27,031.40 × 7,505.96
  4. Step 4: Simplify right side
    18,028.72x = 202,896,607.14
  5. Step 5: Solve for x
    x = 202,896,607.14/18,028.72
  6. Step 6: Final answer
    x = 11,254.08

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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.