Home / 27,155.32-40,739.35-8,434.39

Finding the Fourth Proportional to 27,155.32, 40,739.35 and 8,434.39

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Solution

The fourth proportional to 27,155.32, 40,739.35 and 8,434.39 is: 12,653.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,155.32 : 40,739.35 = 8,434.39 : x
  2. Step 2: Convert to fraction form
    27,155.32/40,739.35 = 8,434.39/x
  3. Step 3: Cross multiply
    27,155.32x = 40,739.35 × 8,434.39
  4. Step 4: Simplify right side
    27,155.32x = 343,611,566.25
  5. Step 5: Solve for x
    x = 343,611,566.25/27,155.32
  6. Step 6: Final answer
    x = 12,653.56

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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.