Home / 20,977.45-31,466.39-6,186.66

Finding the Fourth Proportional to 20,977.45, 31,466.39 and 6,186.66

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Solution

The fourth proportional to 20,977.45, 31,466.39 and 6,186.66 is: 9,280.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.45 : 31,466.39 = 6,186.66 : x
  2. Step 2: Convert to fraction form
    20,977.45/31,466.39 = 6,186.66/x
  3. Step 3: Cross multiply
    20,977.45x = 31,466.39 × 6,186.66
  4. Step 4: Simplify right side
    20,977.45x = 194,671,856.36
  5. Step 5: Solve for x
    x = 194,671,856.36/20,977.45
  6. Step 6: Final answer
    x = 9,280.05

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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.