Home / 39,275.20-58,914.66-12,979.36

Finding the Fourth Proportional to 39,275.20, 58,914.66 and 12,979.36

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Solution

The fourth proportional to 39,275.20, 58,914.66 and 12,979.36 is: 19,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.20 : 58,914.66 = 12,979.36 : x
  2. Step 2: Convert to fraction form
    39,275.20/58,914.66 = 12,979.36/x
  3. Step 3: Cross multiply
    39,275.20x = 58,914.66 × 12,979.36
  4. Step 4: Simplify right side
    39,275.20x = 764,674,581.42
  5. Step 5: Solve for x
    x = 764,674,581.42/39,275.20
  6. Step 6: Final answer
    x = 19,469.65

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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.