Home / 18,019.54-27,029.24-4,871.91

Finding the Fourth Proportional to 18,019.54, 27,029.24 and 4,871.91

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Solution

The fourth proportional to 18,019.54, 27,029.24 and 4,871.91 is: 7,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.54 : 27,029.24 = 4,871.91 : x
  2. Step 2: Convert to fraction form
    18,019.54/27,029.24 = 4,871.91/x
  3. Step 3: Cross multiply
    18,019.54x = 27,029.24 × 4,871.91
  4. Step 4: Simplify right side
    18,019.54x = 131,683,935.47
  5. Step 5: Solve for x
    x = 131,683,935.47/18,019.54
  6. Step 6: Final answer
    x = 7,307.84

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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.