Home / 26,429.76-39,634.56-8,656.02

Finding the Fourth Proportional to 26,429.76, 39,634.56 and 8,656.02

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Solution

The fourth proportional to 26,429.76, 39,634.56 and 8,656.02 is: 12,980.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,429.76 : 39,634.56 = 8,656.02 : x
  2. Step 2: Convert to fraction form
    26,429.76/39,634.56 = 8,656.02/x
  3. Step 3: Cross multiply
    26,429.76x = 39,634.56 × 8,656.02
  4. Step 4: Simplify right side
    26,429.76x = 343,077,544.05
  5. Step 5: Solve for x
    x = 343,077,544.05/26,429.76
  6. Step 6: Final answer
    x = 12,980.73

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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.