Home / 39,944.88-59,899.92-21,220.80

Finding the Fourth Proportional to 39,944.88, 59,899.92 and 21,220.80

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Solution

The fourth proportional to 39,944.88, 59,899.92 and 21,220.80 is: 31,821.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,944.88 : 59,899.92 = 21,220.80 : x
  2. Step 2: Convert to fraction form
    39,944.88/59,899.92 = 21,220.80/x
  3. Step 3: Cross multiply
    39,944.88x = 59,899.92 × 21,220.80
  4. Step 4: Simplify right side
    39,944.88x = 1,271,124,222.34
  5. Step 5: Solve for x
    x = 1,271,124,222.34/39,944.88
  6. Step 6: Final answer
    x = 31,821.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.