Home / 38,624.40-57,936.60-12,331.80

Finding the Fourth Proportional to 38,624.40, 57,936.60 and 12,331.80

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Solution

The fourth proportional to 38,624.40, 57,936.60 and 12,331.80 is: 18,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,624.40 : 57,936.60 = 12,331.80 : x
  2. Step 2: Convert to fraction form
    38,624.40/57,936.60 = 12,331.80/x
  3. Step 3: Cross multiply
    38,624.40x = 57,936.60 × 12,331.80
  4. Step 4: Simplify right side
    38,624.40x = 714,462,563.88
  5. Step 5: Solve for x
    x = 714,462,563.88/38,624.40
  6. Step 6: Final answer
    x = 18,497.70

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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.