Home / 20,816.69-31,225.04-12,046.82

Finding the Fourth Proportional to 20,816.69, 31,225.04 and 12,046.82

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Solution

The fourth proportional to 20,816.69, 31,225.04 and 12,046.82 is: 18,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816.69 : 31,225.04 = 12,046.82 : x
  2. Step 2: Convert to fraction form
    20,816.69/31,225.04 = 12,046.82/x
  3. Step 3: Cross multiply
    20,816.69x = 31,225.04 × 12,046.82
  4. Step 4: Simplify right side
    20,816.69x = 376,162,376.14
  5. Step 5: Solve for x
    x = 376,162,376.14/20,816.69
  6. Step 6: Final answer
    x = 18,070.23

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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.