Home / 19,854.72-27,390.78-12,299.04

Finding the Fourth Proportional to 19,854.72, 27,390.78 and 12,299.04

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Solution

The fourth proportional to 19,854.72, 27,390.78 and 12,299.04 is: 16,967.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.72 : 27,390.78 = 12,299.04 : x
  2. Step 2: Convert to fraction form
    19,854.72/27,390.78 = 12,299.04/x
  3. Step 3: Cross multiply
    19,854.72x = 27,390.78 × 12,299.04
  4. Step 4: Simplify right side
    19,854.72x = 336,880,298.85
  5. Step 5: Solve for x
    x = 336,880,298.85/19,854.72
  6. Step 6: Final answer
    x = 16,967.27

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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.