Home / 39,020.94-58,507.11-12,721.86

Finding the Fourth Proportional to 39,020.94, 58,507.11 and 12,721.86

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Solution

The fourth proportional to 39,020.94, 58,507.11 and 12,721.86 is: 19,074.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,020.94 : 58,507.11 = 12,721.86 : x
  2. Step 2: Convert to fraction form
    39,020.94/58,507.11 = 12,721.86/x
  3. Step 3: Cross multiply
    39,020.94x = 58,507.11 × 12,721.86
  4. Step 4: Simplify right side
    39,020.94x = 744,319,262.42
  5. Step 5: Solve for x
    x = 744,319,262.42/39,020.94
  6. Step 6: Final answer
    x = 19,074.87

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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.