Home / 38,421.24-57,624.60-13,122

Finding the Fourth Proportional to 38,421.24, 57,624.60 and 13,122

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Solution

The fourth proportional to 38,421.24, 57,624.60 and 13,122 is: 19,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,421.24 : 57,624.60 = 13,122 : x
  2. Step 2: Convert to fraction form
    38,421.24/57,624.60 = 13,122/x
  3. Step 3: Cross multiply
    38,421.24x = 57,624.60 × 13,122
  4. Step 4: Simplify right side
    38,421.24x = 756,150,001.20
  5. Step 5: Solve for x
    x = 756,150,001.20/38,421.24
  6. Step 6: Final answer
    x = 19,680.52

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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.