Home / 18,569.85-27,855.45-5,422.35

Finding the Fourth Proportional to 18,569.85, 27,855.45 and 5,422.35

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Solution

The fourth proportional to 18,569.85, 27,855.45 and 5,422.35 is: 8,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.85 : 27,855.45 = 5,422.35 : x
  2. Step 2: Convert to fraction form
    18,569.85/27,855.45 = 5,422.35/x
  3. Step 3: Cross multiply
    18,569.85x = 27,855.45 × 5,422.35
  4. Step 4: Simplify right side
    18,569.85x = 151,041,999.31
  5. Step 5: Solve for x
    x = 151,041,999.31/18,569.85
  6. Step 6: Final answer
    x = 8,133.72

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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.