Home / 20,696.04-28,562.63-12,200.76

Finding the Fourth Proportional to 20,696.04, 28,562.63 and 12,200.76

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Solution

The fourth proportional to 20,696.04, 28,562.63 and 12,200.76 is: 16,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.04 : 28,562.63 = 12,200.76 : x
  2. Step 2: Convert to fraction form
    20,696.04/28,562.63 = 12,200.76/x
  3. Step 3: Cross multiply
    20,696.04x = 28,562.63 × 12,200.76
  4. Step 4: Simplify right side
    20,696.04x = 348,485,732.60
  5. Step 5: Solve for x
    x = 348,485,732.60/20,696.04
  6. Step 6: Final answer
    x = 16,838.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.