Home / 18,282.70-27,421.89-4,772.98

Finding the Fourth Proportional to 18,282.70, 27,421.89 and 4,772.98

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Solution

The fourth proportional to 18,282.70, 27,421.89 and 4,772.98 is: 7,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,282.70 : 27,421.89 = 4,772.98 : x
  2. Step 2: Convert to fraction form
    18,282.70/27,421.89 = 4,772.98/x
  3. Step 3: Cross multiply
    18,282.70x = 27,421.89 × 4,772.98
  4. Step 4: Simplify right side
    18,282.70x = 130,884,132.53
  5. Step 5: Solve for x
    x = 130,884,132.53/18,282.70
  6. Step 6: Final answer
    x = 7,158.91

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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.