Home / 20,758.09-31,136.95-5,966.95

Finding the Fourth Proportional to 20,758.09, 31,136.95 and 5,966.95

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Solution

The fourth proportional to 20,758.09, 31,136.95 and 5,966.95 is: 8,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.09 : 31,136.95 = 5,966.95 : x
  2. Step 2: Convert to fraction form
    20,758.09/31,136.95 = 5,966.95/x
  3. Step 3: Cross multiply
    20,758.09x = 31,136.95 × 5,966.95
  4. Step 4: Simplify right side
    20,758.09x = 185,792,623.80
  5. Step 5: Solve for x
    x = 185,792,623.80/20,758.09
  6. Step 6: Final answer
    x = 8,950.37

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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.