Home / 43,931.84-65,889.72-11,911.52

Finding the Fourth Proportional to 43,931.84, 65,889.72 and 11,911.52

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Solution

The fourth proportional to 43,931.84, 65,889.72 and 11,911.52 is: 17,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,931.84 : 65,889.72 = 11,911.52 : x
  2. Step 2: Convert to fraction form
    43,931.84/65,889.72 = 11,911.52/x
  3. Step 3: Cross multiply
    43,931.84x = 65,889.72 × 11,911.52
  4. Step 4: Simplify right side
    43,931.84x = 784,846,717.57
  5. Step 5: Solve for x
    x = 784,846,717.57/43,931.84
  6. Step 6: Final answer
    x = 17,865.10

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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.