Home / 39,278.46-58,926.92-12,983.20

Finding the Fourth Proportional to 39,278.46, 58,926.92 and 12,983.20

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Solution

The fourth proportional to 39,278.46, 58,926.92 and 12,983.20 is: 19,477.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.46 : 58,926.92 = 12,983.20 : x
  2. Step 2: Convert to fraction form
    39,278.46/58,926.92 = 12,983.20/x
  3. Step 3: Cross multiply
    39,278.46x = 58,926.92 × 12,983.20
  4. Step 4: Simplify right side
    39,278.46x = 765,059,922.83
  5. Step 5: Solve for x
    x = 765,059,922.83/39,278.46
  6. Step 6: Final answer
    x = 19,477.85

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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.