Home / 34,515.24-51,783.80-11,143.50

Finding the Fourth Proportional to 34,515.24, 51,783.80 and 11,143.50

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Solution

The fourth proportional to 34,515.24, 51,783.80 and 11,143.50 is: 16,718.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,515.24 : 51,783.80 = 11,143.50 : x
  2. Step 2: Convert to fraction form
    34,515.24/51,783.80 = 11,143.50/x
  3. Step 3: Cross multiply
    34,515.24x = 51,783.80 × 11,143.50
  4. Step 4: Simplify right side
    34,515.24x = 577,052,719.58
  5. Step 5: Solve for x
    x = 577,052,719.58/34,515.24
  6. Step 6: Final answer
    x = 16,718.78

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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.