Home / 31,434.89-43,379.15-17,287.63

Finding the Fourth Proportional to 31,434.89, 43,379.15 and 17,287.63

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Solution

The fourth proportional to 31,434.89, 43,379.15 and 17,287.63 is: 23,856.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.89 : 43,379.15 = 17,287.63 : x
  2. Step 2: Convert to fraction form
    31,434.89/43,379.15 = 17,287.63/x
  3. Step 3: Cross multiply
    31,434.89x = 43,379.15 × 17,287.63
  4. Step 4: Simplify right side
    31,434.89x = 749,922,500.03
  5. Step 5: Solve for x
    x = 749,922,500.03/31,434.89
  6. Step 6: Final answer
    x = 23,856.38

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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.