Home / 20,758.02-31,147.46-8,302.37

Finding the Fourth Proportional to 20,758.02, 31,147.46 and 8,302.37

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Solution

The fourth proportional to 20,758.02, 31,147.46 and 8,302.37 is: 12,457.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.02 : 31,147.46 = 8,302.37 : x
  2. Step 2: Convert to fraction form
    20,758.02/31,147.46 = 8,302.37/x
  3. Step 3: Cross multiply
    20,758.02x = 31,147.46 × 8,302.37
  4. Step 4: Simplify right side
    20,758.02x = 258,597,737.48
  5. Step 5: Solve for x
    x = 258,597,737.48/20,758.02
  6. Step 6: Final answer
    x = 12,457.73

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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.