Home / 39,260.88-58,891.32-18,486

Finding the Fourth Proportional to 39,260.88, 58,891.32 and 18,486

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Solution

The fourth proportional to 39,260.88, 58,891.32 and 18,486 is: 27,729

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,260.88 : 58,891.32 = 18,486 : x
  2. Step 2: Convert to fraction form
    39,260.88/58,891.32 = 18,486/x
  3. Step 3: Cross multiply
    39,260.88x = 58,891.32 × 18,486
  4. Step 4: Simplify right side
    39,260.88x = 1,088,664,941.52
  5. Step 5: Solve for x
    x = 1,088,664,941.52/39,260.88
  6. Step 6: Final answer
    x = 27,729

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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.