Home / 31,974.21-44,101.53-21,345.39

Finding the Fourth Proportional to 31,974.21, 44,101.53 and 21,345.39

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Solution

The fourth proportional to 31,974.21, 44,101.53 and 21,345.39 is: 29,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.21 : 44,101.53 = 21,345.39 : x
  2. Step 2: Convert to fraction form
    31,974.21/44,101.53 = 21,345.39/x
  3. Step 3: Cross multiply
    31,974.21x = 44,101.53 × 21,345.39
  4. Step 4: Simplify right side
    31,974.21x = 941,364,357.45
  5. Step 5: Solve for x
    x = 941,364,357.45/31,974.21
  6. Step 6: Final answer
    x = 29,441.36

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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.