Home / 19,694.85-27,179.40-10,742.50

Finding the Fourth Proportional to 19,694.85, 27,179.40 and 10,742.50

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Solution

The fourth proportional to 19,694.85, 27,179.40 and 10,742.50 is: 14,824.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,694.85 : 27,179.40 = 10,742.50 : x
  2. Step 2: Convert to fraction form
    19,694.85/27,179.40 = 10,742.50/x
  3. Step 3: Cross multiply
    19,694.85x = 27,179.40 × 10,742.50
  4. Step 4: Simplify right side
    19,694.85x = 291,974,641.89
  5. Step 5: Solve for x
    x = 291,974,641.89/19,694.85
  6. Step 6: Final answer
    x = 14,824.93

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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.