Home / 38,519.67-57,779.31-12,226.47

Finding the Fourth Proportional to 38,519.67, 57,779.31 and 12,226.47

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Solution

The fourth proportional to 38,519.67, 57,779.31 and 12,226.47 is: 18,339.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.67 : 57,779.31 = 12,226.47 : x
  2. Step 2: Convert to fraction form
    38,519.67/57,779.31 = 12,226.47/x
  3. Step 3: Cross multiply
    38,519.67x = 57,779.31 × 12,226.47
  4. Step 4: Simplify right side
    38,519.67x = 706,437,000.34
  5. Step 5: Solve for x
    x = 706,437,000.34/38,519.67
  6. Step 6: Final answer
    x = 18,339.64

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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.