Home / 20,748.88-31,106.04-7,598.80

Finding the Fourth Proportional to 20,748.88, 31,106.04 and 7,598.80

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Solution

The fourth proportional to 20,748.88, 31,106.04 and 7,598.80 is: 11,391.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.88 : 31,106.04 = 7,598.80 : x
  2. Step 2: Convert to fraction form
    20,748.88/31,106.04 = 7,598.80/x
  3. Step 3: Cross multiply
    20,748.88x = 31,106.04 × 7,598.80
  4. Step 4: Simplify right side
    20,748.88x = 236,368,576.75
  5. Step 5: Solve for x
    x = 236,368,576.75/20,748.88
  6. Step 6: Final answer
    x = 11,391.87

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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.