Home / 31,213.67-43,097.43-19,293.35

Finding the Fourth Proportional to 31,213.67, 43,097.43 and 19,293.35

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Solution

The fourth proportional to 31,213.67, 43,097.43 and 19,293.35 is: 26,638.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.67 : 43,097.43 = 19,293.35 : x
  2. Step 2: Convert to fraction form
    31,213.67/43,097.43 = 19,293.35/x
  3. Step 3: Cross multiply
    31,213.67x = 43,097.43 × 19,293.35
  4. Step 4: Simplify right side
    31,213.67x = 831,493,801.09
  5. Step 5: Solve for x
    x = 831,493,801.09/31,213.67
  6. Step 6: Final answer
    x = 26,638.77

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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.