Home / 38,511.10-57,768.70-12,217.90

Finding the Fourth Proportional to 38,511.10, 57,768.70 and 12,217.90

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Solution

The fourth proportional to 38,511.10, 57,768.70 and 12,217.90 is: 18,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,511.10 : 57,768.70 = 12,217.90 : x
  2. Step 2: Convert to fraction form
    38,511.10/57,768.70 = 12,217.90/x
  3. Step 3: Cross multiply
    38,511.10x = 57,768.70 × 12,217.90
  4. Step 4: Simplify right side
    38,511.10x = 705,812,199.73
  5. Step 5: Solve for x
    x = 705,812,199.73/38,511.10
  6. Step 6: Final answer
    x = 18,327.50

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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.