Home / 31,372.40-43,314.18-19,448.48

Finding the Fourth Proportional to 31,372.40, 43,314.18 and 19,448.48

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Solution

The fourth proportional to 31,372.40, 43,314.18 and 19,448.48 is: 26,851.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,372.40 : 43,314.18 = 19,448.48 : x
  2. Step 2: Convert to fraction form
    31,372.40/43,314.18 = 19,448.48/x
  3. Step 3: Cross multiply
    31,372.40x = 43,314.18 × 19,448.48
  4. Step 4: Simplify right side
    31,372.40x = 842,394,998.80
  5. Step 5: Solve for x
    x = 842,394,998.80/31,372.40
  6. Step 6: Final answer
    x = 26,851.47

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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.