Home / 19,930.68-27,504.72-12,859.56

Finding the Fourth Proportional to 19,930.68, 27,504.72 and 12,859.56

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Solution

The fourth proportional to 19,930.68, 27,504.72 and 12,859.56 is: 17,746.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.68 : 27,504.72 = 12,859.56 : x
  2. Step 2: Convert to fraction form
    19,930.68/27,504.72 = 12,859.56/x
  3. Step 3: Cross multiply
    19,930.68x = 27,504.72 × 12,859.56
  4. Step 4: Simplify right side
    19,930.68x = 353,698,597.12
  5. Step 5: Solve for x
    x = 353,698,597.12/19,930.68
  6. Step 6: Final answer
    x = 17,746.44

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1.5x scale

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.