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Finding the Fourth Proportional to 30,000.80, 44,990.40 and 15,204.80

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Solution

The fourth proportional to 30,000.80, 44,990.40 and 15,204.80 is: 22,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.80 : 44,990.40 = 15,204.80 : x
  2. Step 2: Convert to fraction form
    30,000.80/44,990.40 = 15,204.80/x
  3. Step 3: Cross multiply
    30,000.80x = 44,990.40 × 15,204.80
  4. Step 4: Simplify right side
    30,000.80x = 684,070,033.92
  5. Step 5: Solve for x
    x = 684,070,033.92/30,000.80
  6. Step 6: Final answer
    x = 22,801.73

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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.