Home / 38,306.20-57,461.10-12,011.80

Finding the Fourth Proportional to 38,306.20, 57,461.10 and 12,011.80

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Solution

The fourth proportional to 38,306.20, 57,461.10 and 12,011.80 is: 18,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,306.20 : 57,461.10 = 12,011.80 : x
  2. Step 2: Convert to fraction form
    38,306.20/57,461.10 = 12,011.80/x
  3. Step 3: Cross multiply
    38,306.20x = 57,461.10 × 12,011.80
  4. Step 4: Simplify right side
    38,306.20x = 690,211,240.98
  5. Step 5: Solve for x
    x = 690,211,240.98/38,306.20
  6. Step 6: Final answer
    x = 18,018.26

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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.