Home / 17,169.60-23,746.20-15,400.56

Finding the Fourth Proportional to 17,169.60, 23,746.20 and 15,400.56

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Solution

The fourth proportional to 17,169.60, 23,746.20 and 15,400.56 is: 21,299.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169.60 : 23,746.20 = 15,400.56 : x
  2. Step 2: Convert to fraction form
    17,169.60/23,746.20 = 15,400.56/x
  3. Step 3: Cross multiply
    17,169.60x = 23,746.20 × 15,400.56
  4. Step 4: Simplify right side
    17,169.60x = 365,704,777.87
  5. Step 5: Solve for x
    x = 365,704,777.87/17,169.60
  6. Step 6: Final answer
    x = 21,299.55

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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.