Home / 38,983.07-58,474.61-12,687.81

Finding the Fourth Proportional to 38,983.07, 58,474.61 and 12,687.81

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Solution

The fourth proportional to 38,983.07, 58,474.61 and 12,687.81 is: 19,031.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,983.07 : 58,474.61 = 12,687.81 : x
  2. Step 2: Convert to fraction form
    38,983.07/58,474.61 = 12,687.81/x
  3. Step 3: Cross multiply
    38,983.07x = 58,474.61 × 12,687.81
  4. Step 4: Simplify right side
    38,983.07x = 741,914,678.07
  5. Step 5: Solve for x
    x = 741,914,678.07/38,983.07
  6. Step 6: Final answer
    x = 19,031.72

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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.