Home / 31,434.96-43,380.21-17,287.77

Finding the Fourth Proportional to 31,434.96, 43,380.21 and 17,287.77

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Solution

The fourth proportional to 31,434.96, 43,380.21 and 17,287.77 is: 23,857.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,434.96 : 43,380.21 = 17,287.77 : x
  2. Step 2: Convert to fraction form
    31,434.96/43,380.21 = 17,287.77/x
  3. Step 3: Cross multiply
    31,434.96x = 43,380.21 × 17,287.77
  4. Step 4: Simplify right side
    31,434.96x = 749,947,093.03
  5. Step 5: Solve for x
    x = 749,947,093.03/31,434.96
  6. Step 6: Final answer
    x = 23,857.10

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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.