Home / 18,154.74-27,228.87-4,827.81

Finding the Fourth Proportional to 18,154.74, 27,228.87 and 4,827.81

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Solution

The fourth proportional to 18,154.74, 27,228.87 and 4,827.81 is: 7,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.74 : 27,228.87 = 4,827.81 : x
  2. Step 2: Convert to fraction form
    18,154.74/27,228.87 = 4,827.81/x
  3. Step 3: Cross multiply
    18,154.74x = 27,228.87 × 4,827.81
  4. Step 4: Simplify right side
    18,154.74x = 131,455,810.87
  5. Step 5: Solve for x
    x = 131,455,810.87/18,154.74
  6. Step 6: Final answer
    x = 7,240.85

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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.