Home / 38,446.65-57,635.79-20,686.86

Finding the Fourth Proportional to 38,446.65, 57,635.79 and 20,686.86

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Solution

The fourth proportional to 38,446.65, 57,635.79 and 20,686.86 is: 31,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,446.65 : 57,635.79 = 20,686.86 : x
  2. Step 2: Convert to fraction form
    38,446.65/57,635.79 = 20,686.86/x
  3. Step 3: Cross multiply
    38,446.65x = 57,635.79 × 20,686.86
  4. Step 4: Simplify right side
    38,446.65x = 1,192,303,441.14
  5. Step 5: Solve for x
    x = 1,192,303,441.14/38,446.65
  6. Step 6: Final answer
    x = 31,011.89

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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.