Home / 31,419.60-43,392.87-19,511.22

Finding the Fourth Proportional to 31,419.60, 43,392.87 and 19,511.22

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Solution

The fourth proportional to 31,419.60, 43,392.87 and 19,511.22 is: 26,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.60 : 43,392.87 = 19,511.22 : x
  2. Step 2: Convert to fraction form
    31,419.60/43,392.87 = 19,511.22/x
  3. Step 3: Cross multiply
    31,419.60x = 43,392.87 × 19,511.22
  4. Step 4: Simplify right side
    31,419.60x = 846,647,833.00
  5. Step 5: Solve for x
    x = 846,647,833.00/31,419.60
  6. Step 6: Final answer
    x = 26,946.49

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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.