Home / 30,884.24-46,388.36-18,428.58

Finding the Fourth Proportional to 30,884.24, 46,388.36 and 18,428.58

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Solution

The fourth proportional to 30,884.24, 46,388.36 and 18,428.58 is: 27,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,884.24 : 46,388.36 = 18,428.58 : x
  2. Step 2: Convert to fraction form
    30,884.24/46,388.36 = 18,428.58/x
  3. Step 3: Cross multiply
    30,884.24x = 46,388.36 × 18,428.58
  4. Step 4: Simplify right side
    30,884.24x = 854,871,649.40
  5. Step 5: Solve for x
    x = 854,871,649.40/30,884.24
  6. Step 6: Final answer
    x = 27,679.86

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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.