Home / 20,696.63-31,037.12-8,849.91

Finding the Fourth Proportional to 20,696.63, 31,037.12 and 8,849.91

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Solution

The fourth proportional to 20,696.63, 31,037.12 and 8,849.91 is: 13,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.63 : 31,037.12 = 8,849.91 : x
  2. Step 2: Convert to fraction form
    20,696.63/31,037.12 = 8,849.91/x
  3. Step 3: Cross multiply
    20,696.63x = 31,037.12 × 8,849.91
  4. Step 4: Simplify right side
    20,696.63x = 274,675,674.41
  5. Step 5: Solve for x
    x = 274,675,674.41/20,696.63
  6. Step 6: Final answer
    x = 13,271.52

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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.