Home / 18,540.24-27,810.48-4,689.28

Finding the Fourth Proportional to 18,540.24, 27,810.48 and 4,689.28

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Solution

The fourth proportional to 18,540.24, 27,810.48 and 4,689.28 is: 7,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.24 : 27,810.48 = 4,689.28 : x
  2. Step 2: Convert to fraction form
    18,540.24/27,810.48 = 4,689.28/x
  3. Step 3: Cross multiply
    18,540.24x = 27,810.48 × 4,689.28
  4. Step 4: Simplify right side
    18,540.24x = 130,411,127.65
  5. Step 5: Solve for x
    x = 130,411,127.65/18,540.24
  6. Step 6: Final answer
    x = 7,033.95

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.