Home / 31,938.54-44,021.18-21,849.60

Finding the Fourth Proportional to 31,938.54, 44,021.18 and 21,849.60

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Solution

The fourth proportional to 31,938.54, 44,021.18 and 21,849.60 is: 30,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.54 : 44,021.18 = 21,849.60 : x
  2. Step 2: Convert to fraction form
    31,938.54/44,021.18 = 21,849.60/x
  3. Step 3: Cross multiply
    31,938.54x = 44,021.18 × 21,849.60
  4. Step 4: Simplify right side
    31,938.54x = 961,845,174.53
  5. Step 5: Solve for x
    x = 961,845,174.53/31,938.54
  6. Step 6: Final answer
    x = 30,115.50

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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.