Home / 19,985.10-27,579.67-11,032.61

Finding the Fourth Proportional to 19,985.10, 27,579.67 and 11,032.61

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Solution

The fourth proportional to 19,985.10, 27,579.67 and 11,032.61 is: 15,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.10 : 27,579.67 = 11,032.61 : x
  2. Step 2: Convert to fraction form
    19,985.10/27,579.67 = 11,032.61/x
  3. Step 3: Cross multiply
    19,985.10x = 27,579.67 × 11,032.61
  4. Step 4: Simplify right side
    19,985.10x = 304,275,687.88
  5. Step 5: Solve for x
    x = 304,275,687.88/19,985.10
  6. Step 6: Final answer
    x = 15,225.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.