Home / 39,930.12-59,932.04-20,222.48

Finding the Fourth Proportional to 39,930.12, 59,932.04 and 20,222.48

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Solution

The fourth proportional to 39,930.12, 59,932.04 and 20,222.48 is: 30,352.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.12 : 59,932.04 = 20,222.48 : x
  2. Step 2: Convert to fraction form
    39,930.12/59,932.04 = 20,222.48/x
  3. Step 3: Cross multiply
    39,930.12x = 59,932.04 × 20,222.48
  4. Step 4: Simplify right side
    39,930.12x = 1,211,974,480.26
  5. Step 5: Solve for x
    x = 1,211,974,480.26/39,930.12
  6. Step 6: Final answer
    x = 30,352.39

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1.5x scale

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.