Home / 30,197.40-45,306.90-12,672.60

Finding the Fourth Proportional to 30,197.40, 45,306.90 and 12,672.60

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Solution

The fourth proportional to 30,197.40, 45,306.90 and 12,672.60 is: 19,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,197.40 : 45,306.90 = 12,672.60 : x
  2. Step 2: Convert to fraction form
    30,197.40/45,306.90 = 12,672.60/x
  3. Step 3: Cross multiply
    30,197.40x = 45,306.90 × 12,672.60
  4. Step 4: Simplify right side
    30,197.40x = 574,156,220.94
  5. Step 5: Solve for x
    x = 574,156,220.94/30,197.40
  6. Step 6: Final answer
    x = 19,013.43

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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.