Home / 17,921.70-24,738.68-13,458.36

Finding the Fourth Proportional to 17,921.70, 24,738.68 and 13,458.36

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Solution

The fourth proportional to 17,921.70, 24,738.68 and 13,458.36 is: 18,577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.70 : 24,738.68 = 13,458.36 : x
  2. Step 2: Convert to fraction form
    17,921.70/24,738.68 = 13,458.36/x
  3. Step 3: Cross multiply
    17,921.70x = 24,738.68 × 13,458.36
  4. Step 4: Simplify right side
    17,921.70x = 332,941,994.07
  5. Step 5: Solve for x
    x = 332,941,994.07/17,921.70
  6. Step 6: Final answer
    x = 18,577.59

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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.