Home / 31,459.86-43,414.68-17,119.69

Finding the Fourth Proportional to 31,459.86, 43,414.68 and 17,119.69

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Solution

The fourth proportional to 31,459.86, 43,414.68 and 17,119.69 is: 23,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.86 : 43,414.68 = 17,119.69 : x
  2. Step 2: Convert to fraction form
    31,459.86/43,414.68 = 17,119.69/x
  3. Step 3: Cross multiply
    31,459.86x = 43,414.68 × 17,119.69
  4. Step 4: Simplify right side
    31,459.86x = 743,245,818.71
  5. Step 5: Solve for x
    x = 743,245,818.71/31,459.86
  6. Step 6: Final answer
    x = 23,625.21

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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.