Home / 39,276.18-58,908.42-12,981.06

Finding the Fourth Proportional to 39,276.18, 58,908.42 and 12,981.06

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Solution

The fourth proportional to 39,276.18, 58,908.42 and 12,981.06 is: 19,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.18 : 58,908.42 = 12,981.06 : x
  2. Step 2: Convert to fraction form
    39,276.18/58,908.42 = 12,981.06/x
  3. Step 3: Cross multiply
    39,276.18x = 58,908.42 × 12,981.06
  4. Step 4: Simplify right side
    39,276.18x = 764,693,734.53
  5. Step 5: Solve for x
    x = 764,693,734.53/39,276.18
  6. Step 6: Final answer
    x = 19,469.66

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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.