Home / 20,687.55-31,036.20-5,896.68

Finding the Fourth Proportional to 20,687.55, 31,036.20 and 5,896.68

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Solution

The fourth proportional to 20,687.55, 31,036.20 and 5,896.68 is: 8,846.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687.55 : 31,036.20 = 5,896.68 : x
  2. Step 2: Convert to fraction form
    20,687.55/31,036.20 = 5,896.68/x
  3. Step 3: Cross multiply
    20,687.55x = 31,036.20 × 5,896.68
  4. Step 4: Simplify right side
    20,687.55x = 183,010,510.33
  5. Step 5: Solve for x
    x = 183,010,510.33/20,687.55
  6. Step 6: Final answer
    x = 8,846.41

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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.