Home / 18,019.16-27,028.68-4,871.53

Finding the Fourth Proportional to 18,019.16, 27,028.68 and 4,871.53

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Solution

The fourth proportional to 18,019.16, 27,028.68 and 4,871.53 is: 7,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.16 : 27,028.68 = 4,871.53 : x
  2. Step 2: Convert to fraction form
    18,019.16/27,028.68 = 4,871.53/x
  3. Step 3: Cross multiply
    18,019.16x = 27,028.68 × 4,871.53
  4. Step 4: Simplify right side
    18,019.16x = 131,671,059.27
  5. Step 5: Solve for x
    x = 131,671,059.27/18,019.16
  6. Step 6: Final answer
    x = 7,307.28

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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.