Home / 28,388.56-42,567.14-13,174.53

Finding the Fourth Proportional to 28,388.56, 42,567.14 and 13,174.53

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Solution

The fourth proportional to 28,388.56, 42,567.14 and 13,174.53 is: 19,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.56 : 42,567.14 = 13,174.53 : x
  2. Step 2: Convert to fraction form
    28,388.56/42,567.14 = 13,174.53/x
  3. Step 3: Cross multiply
    28,388.56x = 42,567.14 × 13,174.53
  4. Step 4: Simplify right side
    28,388.56x = 560,802,062.94
  5. Step 5: Solve for x
    x = 560,802,062.94/28,388.56
  6. Step 6: Final answer
    x = 19,754.51

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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.