Home / 31,451.69-43,402.89-17,111.35

Finding the Fourth Proportional to 31,451.69, 43,402.89 and 17,111.35

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Solution

The fourth proportional to 31,451.69, 43,402.89 and 17,111.35 is: 23,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451.69 : 43,402.89 = 17,111.35 : x
  2. Step 2: Convert to fraction form
    31,451.69/43,402.89 = 17,111.35/x
  3. Step 3: Cross multiply
    31,451.69x = 43,402.89 × 17,111.35
  4. Step 4: Simplify right side
    31,451.69x = 742,682,240.92
  5. Step 5: Solve for x
    x = 742,682,240.92/31,451.69
  6. Step 6: Final answer
    x = 23,613.43

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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.