Home / 38,539.20-57,808.80-12,246.60

Finding the Fourth Proportional to 38,539.20, 57,808.80 and 12,246.60

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Solution

The fourth proportional to 38,539.20, 57,808.80 and 12,246.60 is: 18,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,539.20 : 57,808.80 = 12,246.60 : x
  2. Step 2: Convert to fraction form
    38,539.20/57,808.80 = 12,246.60/x
  3. Step 3: Cross multiply
    38,539.20x = 57,808.80 × 12,246.60
  4. Step 4: Simplify right side
    38,539.20x = 707,961,250.08
  5. Step 5: Solve for x
    x = 707,961,250.08/38,539.20
  6. Step 6: Final answer
    x = 18,369.90

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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.