Home / 20,758.04-31,136.22-5,966.90

Finding the Fourth Proportional to 20,758.04, 31,136.22 and 5,966.90

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Solution

The fourth proportional to 20,758.04, 31,136.22 and 5,966.90 is: 8,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.04 : 31,136.22 = 5,966.90 : x
  2. Step 2: Convert to fraction form
    20,758.04/31,136.22 = 5,966.90/x
  3. Step 3: Cross multiply
    20,758.04x = 31,136.22 × 5,966.90
  4. Step 4: Simplify right side
    20,758.04x = 185,786,711.12
  5. Step 5: Solve for x
    x = 185,786,711.12/20,758.04
  6. Step 6: Final answer
    x = 8,950.11

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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.