Home / 38,807.20-58,234.80-15,431.20

Finding the Fourth Proportional to 38,807.20, 58,234.80 and 15,431.20

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Solution

The fourth proportional to 38,807.20, 58,234.80 and 15,431.20 is: 23,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,807.20 : 58,234.80 = 15,431.20 : x
  2. Step 2: Convert to fraction form
    38,807.20/58,234.80 = 15,431.20/x
  3. Step 3: Cross multiply
    38,807.20x = 58,234.80 × 15,431.20
  4. Step 4: Simplify right side
    38,807.20x = 898,632,845.76
  5. Step 5: Solve for x
    x = 898,632,845.76/38,807.20
  6. Step 6: Final answer
    x = 23,156.34

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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.