Home / 19,420.39-29,081.37-15,516.59

Finding the Fourth Proportional to 19,420.39, 29,081.37 and 15,516.59

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Solution

The fourth proportional to 19,420.39, 29,081.37 and 15,516.59 is: 23,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.39 : 29,081.37 = 15,516.59 : x
  2. Step 2: Convert to fraction form
    19,420.39/29,081.37 = 15,516.59/x
  3. Step 3: Cross multiply
    19,420.39x = 29,081.37 × 15,516.59
  4. Step 4: Simplify right side
    19,420.39x = 451,243,694.93
  5. Step 5: Solve for x
    x = 451,243,694.93/19,420.39
  6. Step 6: Final answer
    x = 23,235.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.