Home / 31,361.61-43,279.14-17,021.44

Finding the Fourth Proportional to 31,361.61, 43,279.14 and 17,021.44

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Solution

The fourth proportional to 31,361.61, 43,279.14 and 17,021.44 is: 23,489.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,361.61 : 43,279.14 = 17,021.44 : x
  2. Step 2: Convert to fraction form
    31,361.61/43,279.14 = 17,021.44/x
  3. Step 3: Cross multiply
    31,361.61x = 43,279.14 × 17,021.44
  4. Step 4: Simplify right side
    31,361.61x = 736,673,402.69
  5. Step 5: Solve for x
    x = 736,673,402.69/31,361.61
  6. Step 6: Final answer
    x = 23,489.65

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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.