Home / 38,137.28-57,166.21-12,818.00

Finding the Fourth Proportional to 38,137.28, 57,166.21 and 12,818.00

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Solution

The fourth proportional to 38,137.28, 57,166.21 and 12,818.00 is: 19,213.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137.28 : 57,166.21 = 12,818.00 : x
  2. Step 2: Convert to fraction form
    38,137.28/57,166.21 = 12,818.00/x
  3. Step 3: Cross multiply
    38,137.28x = 57,166.21 × 12,818.00
  4. Step 4: Simplify right side
    38,137.28x = 732,756,245.06
  5. Step 5: Solve for x
    x = 732,756,245.06/38,137.28
  6. Step 6: Final answer
    x = 19,213.65

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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.