Home / 38,684.78-58,027.99-12,389.45

Finding the Fourth Proportional to 38,684.78, 58,027.99 and 12,389.45

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Solution

The fourth proportional to 38,684.78, 58,027.99 and 12,389.45 is: 18,584.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,684.78 : 58,027.99 = 12,389.45 : x
  2. Step 2: Convert to fraction form
    38,684.78/58,027.99 = 12,389.45/x
  3. Step 3: Cross multiply
    38,684.78x = 58,027.99 × 12,389.45
  4. Step 4: Simplify right side
    38,684.78x = 718,934,880.71
  5. Step 5: Solve for x
    x = 718,934,880.71/38,684.78
  6. Step 6: Final answer
    x = 18,584.44

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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.