Home / 31,419.45-43,358.96-17,272.39

Finding the Fourth Proportional to 31,419.45, 43,358.96 and 17,272.39

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Solution

The fourth proportional to 31,419.45, 43,358.96 and 17,272.39 is: 23,835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.45 : 43,358.96 = 17,272.39 : x
  2. Step 2: Convert to fraction form
    31,419.45/43,358.96 = 17,272.39/x
  3. Step 3: Cross multiply
    31,419.45x = 43,358.96 × 17,272.39
  4. Step 4: Simplify right side
    31,419.45x = 748,912,867.11
  5. Step 5: Solve for x
    x = 748,912,867.11/31,419.45
  6. Step 6: Final answer
    x = 23,835.96

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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.