Home / 19,985.30-27,579.82-11,032.64

Finding the Fourth Proportional to 19,985.30, 27,579.82 and 11,032.64

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Solution

The fourth proportional to 19,985.30, 27,579.82 and 11,032.64 is: 15,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.30 : 27,579.82 = 11,032.64 : x
  2. Step 2: Convert to fraction form
    19,985.30/27,579.82 = 11,032.64/x
  3. Step 3: Cross multiply
    19,985.30x = 27,579.82 × 11,032.64
  4. Step 4: Simplify right side
    19,985.30x = 304,278,225.32
  5. Step 5: Solve for x
    x = 304,278,225.32/19,985.30
  6. Step 6: Final answer
    x = 15,225.10

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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.