Home / 27,179.40-40,735.64-12,955.36

Finding the Fourth Proportional to 27,179.40, 40,735.64 and 12,955.36

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Solution

The fourth proportional to 27,179.40, 40,735.64 and 12,955.36 is: 19,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,179.40 : 40,735.64 = 12,955.36 : x
  2. Step 2: Convert to fraction form
    27,179.40/40,735.64 = 12,955.36/x
  3. Step 3: Cross multiply
    27,179.40x = 40,735.64 × 12,955.36
  4. Step 4: Simplify right side
    27,179.40x = 527,744,887.96
  5. Step 5: Solve for x
    x = 527,744,887.96/27,179.40
  6. Step 6: Final answer
    x = 19,417.09

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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.