Home / 18,156.36-27,240-5,677.71

Finding the Fourth Proportional to 18,156.36, 27,240 and 5,677.71

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Solution

The fourth proportional to 18,156.36, 27,240 and 5,677.71 is: 8,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.36 : 27,240 = 5,677.71 : x
  2. Step 2: Convert to fraction form
    18,156.36/27,240 = 5,677.71/x
  3. Step 3: Cross multiply
    18,156.36x = 27,240 × 5,677.71
  4. Step 4: Simplify right side
    18,156.36x = 154,660,820.40
  5. Step 5: Solve for x
    x = 154,660,820.40/18,156.36
  6. Step 6: Final answer
    x = 8,518.27

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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.