Home / 38,913.76-58,371.99-12,618.73

Finding the Fourth Proportional to 38,913.76, 58,371.99 and 12,618.73

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Solution

The fourth proportional to 38,913.76, 58,371.99 and 12,618.73 is: 18,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,913.76 : 58,371.99 = 12,618.73 : x
  2. Step 2: Convert to fraction form
    38,913.76/58,371.99 = 12,618.73/x
  3. Step 3: Cross multiply
    38,913.76x = 58,371.99 × 12,618.73
  4. Step 4: Simplify right side
    38,913.76x = 736,580,381.37
  5. Step 5: Solve for x
    x = 736,580,381.37/38,913.76
  6. Step 6: Final answer
    x = 18,928.53

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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.