Home / 38,271.49-57,399.03-11,972.81

Finding the Fourth Proportional to 38,271.49, 57,399.03 and 11,972.81

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Solution

The fourth proportional to 38,271.49, 57,399.03 and 11,972.81 is: 17,956.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,271.49 : 57,399.03 = 11,972.81 : x
  2. Step 2: Convert to fraction form
    38,271.49/57,399.03 = 11,972.81/x
  3. Step 3: Cross multiply
    38,271.49x = 57,399.03 × 11,972.81
  4. Step 4: Simplify right side
    38,271.49x = 687,227,823.87
  5. Step 5: Solve for x
    x = 687,227,823.87/38,271.49
  6. Step 6: Final answer
    x = 17,956.65

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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.