Home / 20,777.37-31,158.33-8,293.65

Finding the Fourth Proportional to 20,777.37, 31,158.33 and 8,293.65

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Solution

The fourth proportional to 20,777.37, 31,158.33 and 8,293.65 is: 12,437.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777.37 : 31,158.33 = 8,293.65 : x
  2. Step 2: Convert to fraction form
    20,777.37/31,158.33 = 8,293.65/x
  3. Step 3: Cross multiply
    20,777.37x = 31,158.33 × 8,293.65
  4. Step 4: Simplify right side
    20,777.37x = 258,416,283.60
  5. Step 5: Solve for x
    x = 258,416,283.60/20,777.37
  6. Step 6: Final answer
    x = 12,437.39

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1.5x scale

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.