Home / 31,214.68-43,098.82-19,294.36

Finding the Fourth Proportional to 31,214.68, 43,098.82 and 19,294.36

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Solution

The fourth proportional to 31,214.68, 43,098.82 and 19,294.36 is: 26,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,214.68 : 43,098.82 = 19,294.36 : x
  2. Step 2: Convert to fraction form
    31,214.68/43,098.82 = 19,294.36/x
  3. Step 3: Cross multiply
    31,214.68x = 43,098.82 × 19,294.36
  4. Step 4: Simplify right side
    31,214.68x = 831,564,148.66
  5. Step 5: Solve for x
    x = 831,564,148.66/31,214.68
  6. Step 6: Final answer
    x = 26,640.16

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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.