Home / 19,619.82-29,438.64-17,958.71

Finding the Fourth Proportional to 19,619.82, 29,438.64 and 17,958.71

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Solution

The fourth proportional to 19,619.82, 29,438.64 and 17,958.71 is: 26,946.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.82 : 29,438.64 = 17,958.71 : x
  2. Step 2: Convert to fraction form
    19,619.82/29,438.64 = 17,958.71/x
  3. Step 3: Cross multiply
    19,619.82x = 29,438.64 × 17,958.71
  4. Step 4: Simplify right side
    19,619.82x = 528,680,072.15
  5. Step 5: Solve for x
    x = 528,680,072.15/19,619.82
  6. Step 6: Final answer
    x = 26,946.22

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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.