Home / 17,129.70-23,643.50-15,358.23

Finding the Fourth Proportional to 17,129.70, 23,643.50 and 15,358.23

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Solution

The fourth proportional to 17,129.70, 23,643.50 and 15,358.23 is: 21,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.70 : 23,643.50 = 15,358.23 : x
  2. Step 2: Convert to fraction form
    17,129.70/23,643.50 = 15,358.23/x
  3. Step 3: Cross multiply
    17,129.70x = 23,643.50 × 15,358.23
  4. Step 4: Simplify right side
    17,129.70x = 363,122,234.21
  5. Step 5: Solve for x
    x = 363,122,234.21/17,129.70
  6. Step 6: Final answer
    x = 21,198.40

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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.