Home / 30,372.80-45,559.20-22,013.60

Finding the Fourth Proportional to 30,372.80, 45,559.20 and 22,013.60

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Solution

The fourth proportional to 30,372.80, 45,559.20 and 22,013.60 is: 33,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,372.80 : 45,559.20 = 22,013.60 : x
  2. Step 2: Convert to fraction form
    30,372.80/45,559.20 = 22,013.60/x
  3. Step 3: Cross multiply
    30,372.80x = 45,559.20 × 22,013.60
  4. Step 4: Simplify right side
    30,372.80x = 1,002,922,005.12
  5. Step 5: Solve for x
    x = 1,002,922,005.12/30,372.80
  6. Step 6: Final answer
    x = 33,020.40

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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.